Search Results

Discriminative Control of Behavioral Variability in Video Game Play
Creativity can be a useful skill in today's classrooms and workplaces. When individuals talk about creativity, it's unclear what the controlling variables are when we tact behavior as "creative." Research in understanding the processes behind behaviors that are considered "creative" would assist in identifying functional relations and provide insight on how to teach creativity. Since creativity is often described as doing something different from the norm, behavioral variability may be a potential aspect of creativity. This study aimed to replicate previous findings by investigating the effects of discrimination training in a multiple schedule of varied and repetitive responding in the context of a video game. Participants played through a 2D online video game made in Bloxels. Different alternating-colored platforms served as the discriminative stimuli for the vary and repeat components. Three parameters of variability were measured (e.g., left jumps, right jumps, and double jumps). The results of the study indicate that participants were able to learn the discrimination of when to repeat and vary their responses depending on which colored platform they encountered.
The Effects of Implementing a Reward-Based Version of Ostrom's Eight Design Principles as an Intervention Package on Responses in a Common Pool Resource (CPR) Game
The aim of behavior analysis has always been to apply technologies rooted in basic behavioral principles to problems of societal importance (e.g., Skinner, 1948; 1953; 1987). One such problem is the Tragedy of the Commons - a phenomenon arising from systemic failures among a community, leading to the total collapse of a critical resource (Hardin, 1968). Elinor Ostrom's Eight Design Principles were developed to provide a framework for the self-management of common pool resources (CPRs; Ostrom, 1990/2015). When applied as an independently manipulated variable, Ostrom's design principles have shown strong effects in the management of CPRs within the context of a tabletop board game Catan® (Smith & Becker, 2023). This preparation included both rewards (i.e., positive reinforcement) and sanctions (i.e., positive punishment) as a feature of the independent variable. However, it has been well documented that punishing and coercive contingencies can lead to problematic outcomes for individuals and societies (e.g., Sidman, 2001; Skinner, 1976). This study evaluated the effects of utilizing only rewarding consequences in lieu of sanctions in an effort to produce the previously observed control over self-management of a CPR, utilizing the previously adapted rules of the Catan® board game.
Using GIFs and Matrix Training to Teach Noun-Verb Tacts to Children with Autism
Verbal behavior is a critical repertoire for children with autism spectrum disorder to acquire. Tacts—verbal behavior evoked by nonverbal stimuli—are important for communicating about the world around oneself. Noun-verb tacts are part of a robust tact repertoire and may be addressed during applied behavior analytic intervention. When acquiring noun-verb tacts, it is important that the speaker learn to respond to many variations of stimuli like novel combinations of learned nouns and verbs, which is called recombinative generalization. One strategy to teach multi-component targets, such as the noun-verb tact, and lead to recombinative generalization is matrix training. Matrix training is a framework utilized to arrange targets that can be combined in order to facilitate recombinative generalization by teaching a subset of combinations and then probing others. With three children with ASD, we used matrix training and evaluated the acquisition of trained and novel combinations of noun-verb tacts with GIFs as stimuli arranged in three matrices. We used a concurrent multiple probe design across sets, and our results indicated that all participants acquired trained noun-verb tact targets in the presence of the GIFs. The degree of recombinative generalization varied across participants, but each participant demonstrated recombinative generalization with some stimuli. We analyzed responding during generalization probes to identify possible sources of stimulus control. We discussed the errors that were emitted when testing for recombinative generalization and provided suggestions for future research on matrix training and recombinative generalization.
The Effects of Specific and Disguised Mands on Staff's Reinforcer Delivery
Residential facilities for adults with developmental disabilities offer essential accommodations and support services, with fostering communication for residents as an important aspect of care. Despite the importance of communication, previous research has identified concerns about staff performance (SP) in facilitating positive social interactions, such as engaging in consequent-mediating behavior for residents' mands. Previous research has primarily focused on improving SP through skills-based training. Yet, Skinner's theory of verbal behavior emphasizes the social and reciprocal nature of mands. Skinner suggests that the listener's behavior, engaging in consequence-mediating behavior, must be conditioned by the verbal community. However, empirical investigations into the reinforcing practices of staff in residential facilities, such as the shaping and sustaining of different types of resident mands, is limited. The current investigation sought to address this gap in research by evaluating if distinct mand topographies, disguised or specific mands, influenced the likelihood of staff engaging in consequence-mediated behavior across three staff-resident dyads. Results suggest a low probability of staff responding to, or reinforcing, mands, thus limiting conclusions on the effects of mand topographies on staff performance. Future directions and considerations regarding resident-staff interactions are discussed.
An Evaluation of the Utility of Fixed Ratio 1 Schedule Contingent Reinforcement on Variability to Increase the Diversity of Activity Selections and the Treatment of Problem Behavior Occasioned by Interruption Routines
Adults with autism spectrum disorder (ASD) and intellectual disability (ID) are the majority of population in residential settings. Many clients in residential settings engage in problem behavior that interferes with their daily routine and work requirements. Restricted and repetitive behavior are one of the features of ASD diagnosis, typically in the form of invariable responding and predictable responses. Differential reinforcement has been used to produce and maintain response variability. I evaluated the utility of a fixed ratio 1 (FR1) schedule on variability to increase the diversity of activity selections in the treatment of problem behavior occasioned by the interruption of routines. Chase engaged in problem behaviors in his bathroom routine, no matter by himself or with his housemate. Results demonstrated a reinforcement-based treatment increased both variable and novel selections while decreasing the rate of self injurious behavior.
An Evaluation of Cross-Function Stimuli in the Treatment of Automatically Maintained Problem Behavior
Noncontingent reinforcement (NCR) is a possible alternative to differential reinforcement of other behaviors (DRO) that may operate through a similar mechanism. In the research, the participant's problem behaviors were maintained by automatic reinforcement or even multiply maintained. NCR is the method to intervene with the participant who had no clinical effect on using sensory integration therapy (SIT) to reduce problem behaviors in the previous study. The results showed that NCR is an effective way to decrease the problem behaviors without extinction burst.
Environmental Control of Pacing in Cougars
Pacing, a common form of stereotypy in captive animals, poses challenges for animal welfare and conservation initiatives. The current study used a comprehensive measurement system to investigate the impact of introducing a food-related activity on the daily patterns of multiple behaviors, including stereotypic pacing, in two zoo-housed cougars. The results showed that, while the intervention did not mitigate pacing overall, it did cause a shift in the cougars' routines. This demonstrated the significant influence of keeper behavior on the animals. Furthermore, the differing effects on each cougar's behaviors underscored the necessity for individualized interventions tailored to the specific needs of animals.
Increasing Caregiver Reliability on Anecdotal Assessments
Functional analyses are the gold standard of confirming maintaining variables of problem behavior. Despite widespread support, many clinical settings instead use anecdotal assessments. These have been shown to have poor reliability when used by non-experts but can be useful for confirming maintaining variables of problem behavior when agreement has reached a certain level. We used behavior skills training to teach new staff member pairs behavior function to increase their reliability on these assessments. We found that although agreement increased slightly, this was not clinically significant. Out of the two pairs of participants one pair of participants was able to identify their client's maintaining variable of problem behavior. Future research should investigate the type of training used for non-experts for example training non-experts to state problem behavior in objective operational terms.
Analysis of Sensory Integration Techniques on Automatically Maintained Problem Behavior
Sensory integration techniques are a common treatment procedure among occupational therapists. The goal is to "apply" input that competes with input from problem behavior. Although this is a commonly recommended intervention, there is limited empirical evaluation with adults with intellectual disabilities. Therefore, we evaluated the effectiveness of occupational therapist-suggested sensory stimuli on the automatically maintained problem behavior of adults. Specifically, we compared the effects of non-contingent access to sensory stimuli and non-contingent access to highly preferred stimuli on the rate of problem behavior. Results suggested that, relative to highly preferred stimuli, sensory stimuli had either a limited effect on problem behavior, or in some cases, were correlated with increases in problem behavior. This suggests that sensory stimuli may not produce the same automatic stimulation as problem behavior. We will discuss implications for treatment, including methods for better identifying stimuli for use in the treatment of automatically maintained problem behavior.
The Effects of Skilled Dialogue Simulation Coaching on the Collaborative Verbal Behavior of Behavior Analysts in Training
Despite the evidence that supports the benefits of a holistic, collaborative approach to autism intervention, but there is little training to teach those skills to professionals. Behavior analysts working in applied settings will often partner with different individuals from very different backgrounds and disciplines. Skilled Dialogue has been recommended as an approach to conversations that values everyone's contributions in fostering compassionate, collaborative, and culturally responsive care to benefit the children served. The purpose of this study was to evaluate the effects of a training workshop to teach the concept and strategies of skilled dialogue to behavior analysts in training. The participants were taught and practiced using the six strategies of Skilled Dialogue: welcoming, allowing, sense-making, appreciating, joining, and harmonizing through use of instructions, rationales, activities, simulations, and feedback. The success of the training was evaluated using a multiple baseline design across training components. Audio and video responses to role-play scenarios were recorded, transcribed, and scored to measure the results of the training workshop on communication skills. The results suggested that the training workshop was an effective method to teaching future behavior analysts how to engage in the strategies and components of skilled dialogue, increasingly the likelihood of collaborative, and children centered communication and care.
Can In-vivo Self-Monitoring Improve Discrete Trial Instruction Implementation?
Beneficial consumer outcomes are most likely when behavior-analytic interventions are implemented with high procedural fidelity (i.e., degree to which the procedure is implemented as intended). Video self-monitoring, which involves teaching staff members to monitor their own procedural fidelity when watching recordings of themselves, can be used to improve and maintain high procedural fidelity, but video self-monitoring requires additional staff time and resources. In-vivo self-monitoring, which involves monitoring procedural fidelity during or immediately following implementing a behavior-analytic intervention, could be a cost-effective option. However, in-vivo self-monitoring needs additional research to understand its effects on procedural fidelity. This current study analyzed the effects of in-vivo self-monitoring on the procedural fidelity of three behavior technicians implementing discrete trial instruction with children with autism. We used a nonconcurrent multiple baseline across participants design to teach participants how to score their procedural fidelity during their discrete trial instruction session. Data suggested that in-vivo self-monitoring was effective for two out of three participants, and those two participants were more likely to be accurate in their self-scored procedural fidelity. Procedural fidelity for the third participant did not increase with in-vivo or video self-monitoring, and the third participant was less likely to be accurate in their self-scored procedural fidelity. During baseline and intervention, two out of three participants were more likely to error on the consequence portion of discrete trial instruction. Results of this evaluation were used to inform the supervisors about the efficacy of self-monitoring for each staff member, and implications of using self-monitoring in practice is discussed.
The Effects of Prompts on Variability in Children with ASD
The concept of "creativity" has been studied under the perspective of variability in behavior analysis. Creativity and variable responding contributes to problem solving in novel situations, learning new responses in different environments, and promote interactions that would otherwise be prohibited by repetitive behaviors and routines. During childhood, play contributes to the emergence of creativity and variability. Children develop many skills that are important to their lives while engaging in play behaviors. Some of those skills include self-advocacy, communication, and problem solving. Researchers have investigated different methods to promote variable play skills in children with autism spectrum disorder (ASD). There is limited research on prompting as an isolated variable in increasing variability in play responses. The purpose of this study was to investigate the effects of prompting on variable play skills. Results indicated that verbal instructions and modeling were effective in increasing variable play responses. Both participants displayed a sustained increase in novel item engagement when exposed to prompting.
A Multicomponent Evaluation of Food Properties Affecting Rumination in an Adult with Intellectual Disabilities
Rumination consists of voluntary regurgitation of partially digested food, followed by chewing and re-swallowing or expulsion of regurgitated stomach contents (DM-ID2). Little research has systematically analyzed the differential effects of type or quantity of food on rumination across extended observations. This analysis demonstrated that certain (isolated) foods may differentially affect the rate of rumination. Furthermore, patterns of responding and manipulations of quantity may provide evidence for naturally occurring contingencies of punishment for the rumination of particular foods. These results may provide an avenue for minimally invasive, sustainable treatment for individuals with severe and chronic rumination.
Evaluating an Exchange Program for the Treatment of Problem Behavior Maintained by Access to Tangibles
Previous studies, typically with children, have used delay-tolerance training to treat problem behavior maintained by access to tangibles. This often involves physical prompting and waiting rather than exchanging, two practices that may not be possible or relevant to adults with intellectual disabilities (ID). For many adults with ID in residential settings, exchanging items, rather than waiting per se, may be evocative for problem behavior. In the current study, I evaluated an exchange program to treat problem behavior maintained by access to tangibles for adults diagnosed with ID at a residential facility. I measured the latency to exchange low- and high-preference items following a request for the item and the individual's problem behaviors. Results demonstrated that the exchange program increased relinquishing of an item while decreasing the rate of problem behavior. This analysis provides another method to treat problem behavior maintained by access to tangibles for adults without using physical prompting.
Intermodal Stimulus Compounding with Ambient Odors Produces Averaging in Rats
In an organism's natural environment, there are always an uncountable number of stimuli, and stimulus features, available to gain control over behavior. When these component stimuli are presented simultaneously, this new stimulus compound can occasion a previously unseen effect on behavior. Stimulus compounding is a method used to better understand how variables in stimulus features may impact the final effect on an organism's responding when presented with a stimulus compound. While stimulus compounding experiments are often conducted using intermodal tone and light stimuli, it is conducted far less often using intramodal stimuli, potentially due to the competing stimulus features of same-modality stimuli. Even less conducted research has been done using two odor component stimuli, despite the large impact odor has on many species' behavior. The purpose of this study was to conduct a stimulus compounding experiment using intramodal ambient odor stimuli in rats, to see what kind of effect a mixed odor compound would have on the subject's behavior. This was done using a wind tunnel designed operant chamber, where both subjects were trained to respond to independently presented odor stimuli. Following training a compound mixture of both component odors was presented to the subjects. The results of this study demonstrated an averaged effect on behavior, producing a response rate under the compound mixture that was intermediate to the response rates under each independent component stimulus. This may be due to several factors, including the efficacy of initial training procedures, the efficacy of the apparatus, and the merging of the component stimuli's features.
Faulty Stimulus Control and Reduced Treatment Integrity: An Analysis of Position Biases
When learning conditional discriminations, it is possible that faulty sources of control develop and interfere with acquisition. In 2021, Bergmann et al. reported the effects of different integrity levels (i.e., to what degree an intervention is implemented correctly) on undergraduate students' mastery of an arbitrary matching to sample task. They found that participants in the reduced integrity conditions at or below 80% were more likely to show stimulus biases (i.e., selecting a particular incorrect stimulus in the presence of a sample stimulus) than participants in integrity conditions at or above 85%. Bergmann et al. did not investigate whether participants were likely to show responding that was biased by position. A position bias is a type of faulty stimulus control that involves allocating more responses to one or a few positions (e.g., first, second, middle, left). We conducted a secondary analysis of data from Bergmann et al., and we used a chi-square goodness of fit test to identify which participants showed a position bias. We found 25 participants out of 168 with potential position biases. We used a chi-square test of independence to analyze the distribution of participants with biased responding by condition and did not find a statistically significant difference. We discussed potential explanations for these findings and describe connections to behavior-analytic practice.
Self-Governance in a CPR Game: An Empirical Assessment of Elinor Ostrom's Eight Design Principles
Nobel laureate and economist Elinor Ostrom earned a Nobel prize in economic sciences in 2009 for her research on a community's ability to self-govern a common pool resource with the use of eight design principles. While Ostrom's accumulated efforts to analyze these principles and apply them to community resources have earned widespread recognition, these principles have yet to take off on a grand scale as a blueprint for self-governance systems globally. There is also a lack of empirical evidence that supports these principles as empirical investigations have yet to manipulate the principles individually or as an intervention package as independent variables. The purpose of the present study is to empirically test Ostrom's eight design principles in a tabletop game model of a community utilizing a common pool resource (CPR) by implementing as well as removing the principles within an adapted version of the board game Catan. In three groups, the CPR almost always fully crashed in baseline but not when Ostrom's principles were in place as game rules. Results indicated that Ostrom's design principles may organize participant responses and maintain resource levels over time more effectively than without Ostrom's rules applied.
Designing, Implementing, and Evaluating an Online Instructional Program to Teach Students to Evaluate Systemic Social Issues Using a Matrix Analysis
This research aimed to determine the effects of an online training program on the accurate articulation of the concepts and elements needed to conduct a matrix analysis, the accuracy with which participants embedded these elements in a matrix analysis diagram, and the qualitative value of those elements. The development of the online training program was completed through a series of recursive steps. First, four literature searches regarding the matrix analysis, its foundational concepts, and underlying theoretical frameworks; systems analysis; culturo-behavior science; behavior analytic approaches to education; wicked and super wicked problems; and behavioral community psychology were conducted. Second, a tentative list of definitions for each element that collectively forms a matrix analysis was formed used to complete a component-composite analysis for each of the elements, and to determine the component skills individuals would need to develop to complete a matrix analysis and corresponding diagram. The component-composite analysis served as the basis for the general outline of the training program and the structure for the development of the training program presentations, activities, and assessments using Google Classroom. The online training program was piloted with 17 individuals enrolled in a graduate level course on behavioral systems analysis. Following the pilot of the online training program, a coding system was developed to assess the accuracy of responses to questions on the underlying concepts and the collective elements included in the matrix analysis on pre-training and post-module assessments, the accuracy and quality of the matrix analysis diagram elements in three matrix diagrams (pre-training, post-training, and generalization). The results for the pre-training and post-module assessments showed that participants provided more correct answers on the post-module assessments than on the pre-training assessment. The results for the accuracy measurement for the three matrix diagrams show stability in the key actors and sectors and behaviors and practices, but …
The Effects of Skilled Dialogue Training on Behavior Analysts' Verbal Behavior Related to the Provision of Compassionate, Collaborative, and Culturally Responsive Care
Despite the growing recognition of the importance of compassionate, collaborative, and culturally responsive care in behavior analysis, the training programs to develop relevant skills are meager. The purpose of the current study is to evaluate the effectiveness of Skilled Dialogue training for behavior analysts in improving the use of six strategies–welcoming, allowing, sense-making, appreciating, joining, harmonizing–when engaging in conversations with clients, colleagues and other professionals. While one participant's verbal responses in all six strategies during the role plays improved after the training, the other participant showed mixed results. High variability in both participants' data suggests that the effectiveness of the training can be better evaluated with tighter control of the components of the training and the measurement system. The potential ways to improve the experimental control in future studies are discussed.
Change AGENT Project Part 1: Training Staff to Make Responsive Decisions Based on Goals and Rationales and Evaluating the Effects on the Manding Progress of Children with Autism
When autism interventionists within behavioral intervention programs continually assess the child's behavior and context and adjust their teaching behaviors accordingly, the child can quickly progress towards their goals. While evaluations of flexible behavior-change techniques implemented by experienced clinicians are present in the literature, systematic evaluations of staff training procedures to train interventionists in responsive decision making are lacking. In the current study, flexible training procedures were utilized to not only teach direct-line staff to make decisions based on the learner's behavior, but also to understand and articulate the variables they were responding to. During in vivo training sessions, trainers tailored their use of instructions, modeling, practice, feedback, narration modeling and shaping, and decision-making guidance to the dynamic needs of the staff and child. The effects of the treatment package, which consisted of an in-service training and in vivo training sessions, were measured by observing staff teach vocal manding, which was chosen based on the importance of the skill for the child and because it afforded many opportunities for the staff to learn to make decisions about how to occasion and shape responses. The three children with autism who participated in the study made progress in terms of increasing their frequency of independent mands and producing more topographically complex responses. The three staff also improved in their narration of the child's behavioral goals, the decisions they made to reach those goals, and their rationales, which may have served as a mediator in their ability to respond to the child's behavior across varied conditions.
An Extension of a Peer-Mentoring Training Program for College-Aged Students
An important predictor of the success of a peer-mentoring program is the quality of the relationship between the peer mentor and the mentee. A previous study identified target outcomes, operationally defined target behaviors, and developed a computer-based instruction (CBI) training module to teach peer mentors relationship skills. The previous study suggested that the CBI training module increased target behaviors in pre-and post-tests that were typed. The current study replicated and extended the previous study with additional participants and analyzed responding during a video-chat generalization assessment. We observed an increase in target behaviors during the CBI post-test for 7 out of 8 modules across two participants and an increase in target behaviors for 5 out of 12 target behaviors across three participants for the generalization assessment. Results suggest that the CBI training modules may be an effective way to teach behaviors that contribute to a high-quality relationship when participants engage in typed responses. However, the extent to which these behaviors generalize to a video-chat generalization assessment may need further research.
The Effects of Voluntary and Involuntary Muscle Recruitment Training on the Strength of Isometric Muscle Contractions
Approximately 50% of individuals who undergo total knee arthroplasty (TKA) fail to achieve a full functional recovery. Current physical therapy practices commonly utilize neuromuscular electrical stimulation (NMES) to passively activate quadriceps muscles. This passive approach does not directly reteach the lost response, but can strengthen the atrophied muscle. Study 1 compared surface electromyography with biofeedback (sEMGBF) with a changing criterion design to NMES alone. Study 2 compared static sEMGBF to NMES with feedback. Study 3 compared surface electromyography (sEMG) with instructions only to NMES. All other methods were constant across the three studies, where I compared the passive and active approach within-subject, across knees, and across groups while controlling for condition order and leg dominance. Each participant receives both NMES and the shaping procedure. Each condition lasts five minutes and consists of 30 muscle contractions. Each contraction lasts 5 seconds and was followed by a 5 second rest. I compared pre and post adapted maximal voluntary isometric contraction (A-MVIC) tests to determine the effectiveness of each condition. Results of the three studies demonstrated that actively teaching voluntary vastus medialis oblique (VMO) engagement using sEMG is more effective than NMES at increasing maximum voluntary isometric contractions of the VMO.
Change AGENT Project Part 2: Further Analyses of Progress Following Staff Training on Responsive, Goal-Directed, and Rationale-Based Decision Making
Evidence-based practice in ABA is a complex decision-making process involving frequent adjustments in goals and procedures as informed by science, client need, and clinical wisdom. Consistent with the science's foundations, incredible gains are possible for children with autism when practitioners are systematically trained to understand, produce, and be responsive to shifting conditions for change. However, minimal standards for training promote inflexibility and rule following, at the expense of frequent and responsive adjustments. Although research has demonstrated that well-trained staff can effectively implement flexible procedures using in-the-moment assessment and clinical judgment, minimal research has targeted and evaluated the development of these repertoires. Therefore, the purpose of this study was to evaluate the effects of a staff training package, including an in-service training and in vivo training sessions, on staffs' ability to make responsive, goal-directed, and rationale-based decisions directed towards accelerating progress with vocal manding for children with autism. The evaluation was the second part of the larger Change AGENT Project. Results suggested the training was effective at producing socially validated progress across staff and child measures. In essence, the trainer, staff, and child acted as change agents for one another's behavior within the flexible paradigm. Implications, limitations, and future directions are further discussed.
Investigating the Role of Concurrent Verbal Behavior in a Rule-Shifting Scenario
The present study evaluates the effects of incompatible verbal behavior when engaging in the Wisconsin Card Sorting Test (WCST). The WCST is a complex task that requires participants to match stimulus cards based on self-generated rules. After a varying number of trials, the rule changes and the participant will have to self-generate a new rule. Verbal behavior, specifically joint control, is likely involved in rule-following. Seven participants took part in this study. Participants engaged in the WCST either silently or while performing a putatively incompatible behavior, counting backward from 100 to 0. Results suggest joint control might be involved as when participants engaged in the incompatible behavior their performance was affected in terms of lower accuracy and longer reaction times compared to the silent baseline.
An Evaluation of Differential Attention on Preferred Topics of Conversation for Adults with Autism Spectrum Disorder
Extensive speech on preferred conversation topics may limit conversations with others. For individuals with ASD, extensive speech on a topic may be a form of restricted or repetitive behavior that may be addressed through skill building. However, previous research suggests that skill building may not be necessary if the behavior is sensitive to differential reinforcement contingencies. To evaluate the effects of differential reinforcement in the form of attention on conversation topics, we replicated the results of Stocco et al. by assessing sensitivity to conversational attention with participant-only topic initiations. Additionally, we extended the procedures by evaluating the effects of topic initiations from the participant and the experimenter (shared initiations). Similar to previous research, our results yielded that speech was sensitive to conversational attention across all participants. That is, differential reinforcement contingencies altered levels of speech on topics of conversation, indicating that differential reinforcement procedures may be sufficient in addressing performance deficits. Lastly, we assessed participant preference for participant-only initiation or shared initiation conversations.
Tales by Moonlight: An Exploratory Analysis of the Effects of a Storytelling Interview Package for Youths and Elders in an Historically Black Community
Storytelling is a practice that is used to pass down important information about culture, environment, and history. From a behavior analytic perspective, the process of storytelling involves contingencies and can be viewed within the framework of the Skinner's analysis of verbal behavior. For each listener, based on their history of learning and experiences, stories enable a unique type of learning about reinforcers, punishers and cultural context. In African American oral tradition, storytelling was and still is important in preserving the identity, safety, and wellbeing of African Americans. The purpose of this project was to inductively explore story telling between youth and elders in an African American community. A training workshop was developed that included an overview of the importance and role of storytelling in the black community and ways for youth to respectfully listen and learn from elders. The participants included two children and one elder. The independent variable was the training package, the dependent measures included the levels of synchronous engagement, the listener behaviors of the youth and the participant voices, that is, the descriptions and reflections of children and elders about the process and outcomes of this project. A multiple probes design across skills with in-vivo generalization check was used to observe the effects of a storytelling interview package to engage children with an elder in the community. The results of the project indicated that the project was beneficial and enjoyable for the participants. The extent to which this was a result of the workshop was not clear and suggestions are made for future directions. The findings are discussed in the context of measurement, meaning, and positionality.
Investigating the Effects of Teaching on Response Allocation by Implementing a Changing Criterion Procedure
The study of choice and allocation has often focused on certain parameters of reinforcement, but rarely on historical variables. The goal of this study was to investigate the potential effects of gradual vs. abrupt teaching methods on future response allocation. A secondary goal was to see if the results of teaching-method manipulations might be correlated with the parameters that the teaching method produced, specifically unit costs, rate of reinforcement, or error rates. Results indicate that these teaching procedures can produce transient shifts in allocation, but not in a consistent direction. Neither unit cost nor rate or reinforcement alone can account for observed response allocation shifts after training. Researchers saw that subjects reliably shifted towards a manipulanda that produced higher rates of errors, therefore investigating the influence that error rate (or types of errors) may have on response allocation may aid in general teaching method preferences. Future research could focus on the combination of historical procedural variables and current variables that could determine response allocation.
Exploring Functional Interdependence of Mands, Tacts, and Intraverbals after Brain Injury
One goal of this study was to evaluate the emergence of mands and intraverbals following tact acquisition for individuals with aphasia due to acquired brain injury. A second goal was to evaluate the transfer of shortened latencies as a function of tact training across untrained operants. In Study 1, the dependent measure was accuracy of responding and in Study 2, the dependent measures were rate and latency of responding. Participants for Study 1 were two uninjured adults (pilot) and two adults with brain injury (ABI). Both sets of participants were directly taught to tact up to 6 stimuli. Once tacts were acquired, the response forms were assessed under mand and intraverbal conditions. All pilot participants and one ABI participant showed mand transfer for all stimuli. Tact to intraverbal transfer varied across participants. One adult with brain injury served as a participant for Study 2. Fluency training was used to teach tacts for 15 stimuli. Response latencies were gathered for all operants before and after training. The participant met the designated aim (rate of responding) and showed a decrease in latencies for tacts and untrained intraverbals. Changes in mand latencies varied. Fluency gains showed partial retention. Results from Study 1 provide further evidence for interdependence across operants during rehabilitative training. Results from Study 2 provide preliminary support for the utility of fluency training for verbal behavior after brain injury. Future research should explore the components of fluency training and their effects on the verbal behavior of individuals with ABI.
The Effects of Using Arbitrary Symbols in Naming Procedures with Adults
Naming refers to encountering a new word and subsequently being able to use it both expressively and receptively. Sometimes, this can happen in as little as a single experience. Several recent studies have explored factors that influence the acquisition of naming in adults. However, these studies used familiar stimuli for which the participants already had names. In these studies, preexisting stimulus-response relations with the stimuli could have impeded the acquisition of new names for some participants. In contrast, the present study used unfamiliar ("arbitrary") stimuli. In addition, an equivalence test was used to validate the findings because some theorists have claimed that naming is required for equivalence. The results revealed some advantages to teaching naming with arbitrary stimuli. Interestingly, a subset of participants had high scores on equivalence tests without having high scores on expressive tests. This indicates that, contrary to naming theory, naming may not be necessary for equivalence and match-to-sample tests may not be the best test of equivalence. These findings support the independence of the expressive and receptive repertoires both in the development of naming and equivalence.
Reliability of Treatment Integrity Assessment with Multiple Observers: Can Agreement Be Assumed?
Interobserver agreement (IOA) was calculated across three participant dyads for a generalized treatment integrity tool. No dyads achieved 80% agreement during baseline. Task clarification was piloted as an intervention for two of the three dyads. Form agreement produced stabilization in both dyads and improvement in one dyad. Time agreement did not improve but demonstrated marked trends in one dyad.
Exploring the Efficacy of Percentile Schedules with the Amplitude of Muscular Contractions
Percentile reinforcement schedules have been used to systematically alter inter-response times, behavioral variability, breath carbon monoxide levels, duration of social behaviors, and various other properties of behavior. However, none of the previous studies have examined the effectiveness of percentile schedules in relation to the magnitude of muscular contractions. This control over magnitude of muscular responding has important implications relating to the strengthening of muscles and correct movements for patients receiving physical rehabilitation. There would be great utility in percentile schedules that can be implemented in rehabilitation situations by physical therapists and patients themselves to improve treatment outcomes – all of which could be possible without any behavioral training if the procedure is implemented via body sensors and smartphone applications. Using healthy adults and the aforementioned technology, this thesis focused on the design and testing of three percentile reinforcement schedule procedures to increase the strength of the vastus medialis muscle. Results indicate that the magnitude of muscular responses can be shaped using body sensors and contingent feedback, and the percentile schedule procedures have promising applications in the domain of physical therapy.
Exploring the Effects of Cultural Consequences Identified through a Ranking Task on the Interlocking Behavioral Contingencies of Ethically Self-Controlled Responses with Participants with Pre-Existing Relationships
This study explored the effects of cultural consequences identified through a ranking task on the selection of interlocking behavioral contingencies and aggregate products constituting ethically self-controlled responses when participants had pre-existing relationships. Two experiments were conducted to explore these effects. Experiment 1 had two triads of three participants each recruited from a university-based autism center. Experiment 2 had three triads of three participants each; participants in Triads 3 and 4 were recruited from a university-based rock-climbing club while participants in Triad 5 were recruited from the same university-based autism center as in Experiment 1. All participants were exposed to a task that involved choosing odd or even rows from a matrix displayed throughout the experimental session. Individual contingencies were programmed in all conditions while metacontingencies were programmed in some conditions. Participants selected the topography of the cultural consequence through a pre-experimental ranking task prior to the onset of the experimental session. A change was made to the experimenter's verbal behavior in all operant and metacontingency conditions for Experiment 2. The results of both experiments indicate that identification of the cultural consequence through a ranking task with participants having pre-existing relationships did have an effect on the continued selection of the cultural consequence across all triads with quicker selection occurring during Experiment 2. This study extends the current literature on ethical self-control and provides new procedures and designs to further understand the variables involved in the selection of cultural consequences when there is competition with an immediate operant consequence.
A Safe and Fast Deworming Procedure for Horses
Most horse owners administer oral deworming medication to their horses on a set schedule, often six times per year. The deworming process involves using a plastic syringe to inject a thick paste into the horse's mouth. Most horse owners do not specifically train their horses to accept this procedure. Consequently, many horses resist the procedure and some horses engage in behaviors, such as head shaking, pulling away, or even rearing, that may be dangerous to humans or to themselves. This study used a negative reinforcement shaping procedure to train six horses to accept dewormer medication. The procedure consisted of a food sampling phase followed by three shaping phases that simulated the deworming task, first using only the experimenter's hand, then a small syringe, and finally a large syringe. Once the horse was acclimated to the syringe, the horse's preferred liquid food was delivered through the syringe at the end of each trial. By the end of the study, all participants successfully completed the procedure and were able to stand still with no or minimal head movements while being dewormed.
A Proposal for a Training Program to Support Culturally Responsive Professional-Family Interactions
Behavior analysts often work with families from diverse cultural backgrounds. Ideally, behavior analysts and families interact in ways that are responsive to the family's culture and valued outcomes. The data indicate that most behavior analysts, however, come from one dominant cultural group. This is a proposal for training program and evaluation method to support culturally responsive professional-family interactions. This proposed study is designed to be conducted via Zoom-- a cloud-based video conferencing service. A pre-post treatment design is proposed to assess the effects of the training. Hypothetical data were generated to consider the range of effects such a program might have on trainee responses to written/live scenarios. Responses in the observation protocol included written descriptions, empathetic statements, perspective taking statements, and non-verbal behaviors. Overall, the program was designed using evidence-based procedures and is likely to support behavior analysts in training and in practice to improve their interactions with families and become more culturally responsive to groups of people that are from the non-dominant culture.
A Preliminary Analysis of the Effects of a Training Program to Teach Skilled Dialogue to a Behavior Analyst Working in a Culturally Diverse Setting
Diversity can serve as both a unifying force as well as grounds for intolerance of differences. Behavior analysts working in applied settings often encounter diversity and it is in these settings that meaningful relationships and harmonious collaboration are vital. Skilled dialogue has been recommended as an approach to capitalizing on diverse perspectives so that new solutions and meaningful relationships are developed. The purpose of the present study was to evaluate the effects of a training workshop to teach skilled dialogue to behavior analysts. The participant was trained to provide welcoming, allowing, sense-making, appreciating, joining, and harmonizing statements using instructions, rationales, models, role-plays, and feedback. The effects of the training workshop were evaluated using a multiple baseline design across training components. Audio responses to role-play scenarios were recorded, transcribed, and scored in order to assess the effects of the training workshop on communication skills. The results of the study indicated that this training workshop is an effective method to teach behavior analysts to engage in the components of skilled dialogue, hopefully contributing to harmonious collaborative communication in their work settings.
A Behavior Analytic Account of Humor Responses: Taking a Joke Way Too Seriously
Compared to other examples of human behavior, humor responses have received relatively little attention from the scientific community and by the behavior analytic community in particular. This study investigated what some of the controlling variables for humans to emit a humor response may be. Participants were randomly presented two types of word sequences/jokes: one with a matching punchline and one without a matching punchline. Participants rated whether the jokes were funny or not funny, and reaction time was measured for all stimuli presented. Generally, the results showed that reaction times to punchlines rated as not funny were shorter than punchlines that were rated funny. These differences in reaction time were interpreted with priming, intraverbal control, and multiple control as an experimental foundation. Limitations include the absence of physiological measures due to COVID-19 restrictions and the forced choice of two rating responses. The implications of this research reveal opportunities for future research of humor responses.
The Correspondence between Receptive and Expressive Task Performances: A Further Analysis of Necessary Conditions
This study was a replication and an extension of the 2021 research performed by Spurgin and Borquez on the correspondence between receptive and expressive behavior. Spurgin examined the role of the echoic in a hear-say procedure with adult learners, while Borquez examined the role of the echoic in both hear-say and see-say procedures. Both studies found that receptive and expressive correspondence did not occur consistently across participants. The present study asked if the fading steps used during training contributed to the results of the previous researchers. In the present study, the fading steps were changed to minimize the chance that the participant developed a position bias. The conditions were also counterbalanced to analyze the effects of hear-say vs. see-say, easy vs. difficult words, and the order in which the words were trained on the acquisition of receptive labels and the emergence of expressive labels. The study consisted of five phases: pre-training, hear-say teaching, see-say teaching, receptive testing, and expressive testing. Results indicated that although that acquisition of receptive labels improved, the change in fading steps did not make a significant difference in the correspondence of receptive and expressive language. Results showed similar correspondence in the hear-say and see-say procedures. Easy words and words taught more recently were correlated with increased receptive-expressive correspondence.
The Effects of a Contingent S-Delta
This thesis attempted a cross-species replication of Bland, et. al., 2018. Human participants went through a computerized, automated shaping procedure that trained them to click on and discriminate between a blue square (SD) and red square (S-delta) on a VR 12 schedule of reinforcement. Three conditions were then presented to the participants consisting of a baseline, punishment, and control condition. In the punishment and control conditions, the SD was replaced by the S-delta or a novel stimulus respectively for 1-second on a VR 5 schedule. With each click, the reaction time and specific object clicked on were recorded. While the present study partially replicated the effect seen in earlier research, our results suggest that, depending on the lens of analysis used, either a punishment or an extinction effect may be causing the results seen.
Comparing a Hear-Say and See-Say Teaching Procedures during Verbal Behavior Instruction
Establishing effective language intervention for those who struggle to acquire it early on has received significant attention from researchers within the field of behavior analysis. The procedures of the present study were adapted from Spurgin' thesis research from 2021, in which a stimulus specific consequence was used during teaching after participants made correct responses. In this case, the stimulus specific consequence was a label for a picture that participants were required to point to during teaching trials. When participants pointed to the correct card, the researcher would label the card and deliver a small wooden block which the participants were told they were working for. In the hear-say procedures, participants were taught one set of cards and instructed to echo the researchers' labels. In the see-say participants were taught a second set of cards and instructed to "beat' the researcher to saying the word. After all cards were taught, were tested with a non-vocal receptive identification test. Immediately following this, participants were tested with a vocal expressive identification test. An extended teaching was included to determine the effects of additional practice within each condition. Results indicated that the participants were able to require some receptive and expressive language but targets often did not correspond. In many instances, receptive mastery did not necessarily lead to expressive mastery or vice versa. Results also indicated that additional practice improved receptive scores but had little impact on expressive scores. Implication for teaching learners with autism as well as typical adults is discussed.
A Preliminary Investigation of How to Teach Undergraduate Students How to Build Rapport and Create Meaningful Interactions with College-Aged Students with Autism Spectrum Disorder
University peer-mentoring programs have shown to increase the retention rates of students, including students with autism spectrum disorder (ASD), and improved satisfaction with the college experience. The perceived quality of a mentee-mentor relationship may predict satisfaction with a peer-mentoring program; therefore, teaching peer mentors to engage in behaviors that could contribute to a high-quality mentee-mentor relationship may be beneficial. The current study identified target outcomes, operationally defined target behaviors, and developed a computer-based instruction (CBI) training module. The CBI training module was divided into four submodules that incorporated teaching through examples and nonexamples and discrimination training. The efficacy of each CBI submodule was evaluated using a pretest/posttest design with two mentors in a university peer-mentoring program. Results suggested that the CBI training module produced an increase in the frequency of correct responses in seven out of eight submodule posttests across both participants. The CBI training program also produced an increase in the frequency of target behaviors emitted by both participants across all submodules. These findings suggest that this CBI training module can be used to teach peer-mentors the behaviors that may improve their relationship with their mentee.
The Use of Instructive Feedback to Promote Emergent Verbal Responses: A Replication
Previous research has incorporated instructive feedback (IF) within mastered listener-by-name trials with two children diagnosed with autism spectrum disorder (ASD). Participants in a previous study acquired the secondary targets and also demonstrated emergent responding (i.e., listener-by-feature, tact-by-feature, intraverbal, and reverse intraverbal). The current study replicated a previous study on IF with two children with ASD. Therapists conducted a series of three sessions of mastered listener-by-name trials (e.g., "Show me otter," and the participant selecting the picture of the otter) and provided IF statements for features of the target stimuli (e.g., "It lives in rivers."). We measured participants' echoic responding and required attending to the target stimulus during IF trials, and we evaluated acquisition of secondary targets and emergent responses using a concurrent multiple probe design across sets. We observed increased correct responding for secondary targets and emergent responses for the first set of stimuli with both participants. However, one participant did not engage in emergent responses for the two remaining sets. Results suggest that related verbal operant response relations of secondary targets may result after IF, but the extent of emergence may be idiosyncratic.
The Emergence of Receptive and Expressive Language through Stimulus-Specific Consequences
An important question in teaching language is, what accounts for the emergence of either receptive or expressive labels when teaching only one of them? The teaching procedures in the present study were intended to reproduce the natural development of bidirectional naming in which caregivers comment on the items a child is interacting with and children echo those vocalizations they hear. Thus, the only vocalizations presented by the researcher during teaching occurred after the learner pointed to a specific stimulus, and were specific to the stimulus being targeted. These vocalizations are referred to in this study as stimulus-specific consequences. The purpose of this research was to investigate if the stimulus-specific consequences could become discriminative stimuli for receptive labels, and lead to the emergence of expressive labels. Three studies were conducted, each with four adults. Results demonstrated that using a stimulus-specific consequence during teaching led to receptive labels for all participants, but led to the emergence of expressive labels for only four participants. In other words, bidirectional naming did not occur for the majority of participants. Factors that may improve interrelations between receptive and expressive labels were analyzed, but further evaluations are needed to account for the inconsistent demonstrations of naming.
Stimulus Equivalence and Competing Behavior: Individual Differences in Accuracy and Reaction Time
The present study investigated how engaging in a behavior that is potentially incompatible with covert verbal behavior, singing aloud, affected the percent of correct responses and reaction time during equivalence tests as compared to engaging in a behavior considered compatible with covert verbal behavior, alternating foot tapping, during testing. Results varied between participants with some participants showing higher accuracies in the incompatible condition and some in the compatible condition. Performance in terms of accuracy and reaction time were correlated, with higher accuracies in the compatible condition being correlated with faster reaction times in the compatible condition. Limitations discussed include a low number of participants due to COVID-19, the covert nature of the behavior of interest, the length of time required to complete the experiment, and the challenges to monitoring the incompatible behavior due to social distancing requirements. Potential future research is discussed in light of these limitations.
Use of a Virtual Reality Gaming System to Improve Balance in Individuals with Chronic Brain Injury
Wii Fit U games utilize a Wii Balance Board™ (WBB) in a manner that can provide precise feedback contingencies similarly to some forms of balance rehabilitation, thereby potentially increasing the dose of quality therapy with or without the presence of a therapist during post-brain injury rehabilitation. Additionally, an engaging video-game could improve treatment adherence, a critical aspect of making positive functional gains, by potentially increasing the rate and quality of reinforcement embedded in therapy. The present study had three aims: (1) develop a rigorous behavioral therapy for improving balance in individuals living with chronic brain injury using a Wii Fit U game and the WBB; (2) evaluate the program's effects on balance measures using a within-subject experimental design; and (3) assess social validity of behavioral gains by evaluating the program's effects on participant's "subjective balance confidence" (i.e., their Activities-Specific Balance Confidence (ABC) scores). A reversal design is proposed for use with primary study participants, wherein the experimental gameplay condition and no intervention condition are alternated for 6 to 10 weeks. A similar design was used in a truncated fashion with pilot participants, and a multiple baseline design was used with follow-up pilot participants. It was expected that participants would exhibit greater performance in the game as well as better balance score improvement when the Wii Fit U game was administered at a high therapeutic dose, and that increased ABC scores would correlate with directly measured balance scores.
The Influences of a Topographically and Functionally Unrelated Operant on Response Allocation under Concurrent Continuous Reinforcement Schedules
In the experimental analysis of behavior, response allocation is typically studied under concurrent interval schedules, with two response alternatives, in a static environment. The natural environment of the unfettered organism, however, is dynamic insofar as even frequently visited environments are rarely identical from encounter to encounter. Additionally, natural environments usually offer more than two concurrently available behaviors that are often scheduled for reinforcement contingent on rate of responding. The purpose of this study was to determine how the addition or removal of a third response alternative affected response allocation between two topographically dissimilar operants on independent concurrent ratio schedules in a dynamic environment. Results indicate that the addition of the third operant served to temporarily suppress response rates of the first two operants but had no or only minor and inconsistent effects on relative allocation. The reintroduction of the third operant in a new location again suppressed response rates in three of four subjects and slightly shifted response allocation for one subject. Highly individual anecdotal patterns could be seen in tangential observations of each of 4 subjects. The results suggest the possibility that new alternatives have temporary effects on response bias, and that these effects may be variable and dependent on details of individual history and stimulus control.
Evaluating Variables that Influence Research Staff Performance
Performance analysis, based on operant analysis of behavior, has been utilized since the 1960s to investigate behavioral skills or deficits in the workplace. One type of analytical tool is Carr et al.'s Performance Diagnostic Checklist- Human Services (PDC-HS). This functional assessment allows investigators to pinpoint causes of performance issues (e.g., a training issue, task clarification/prompting, insufficient resources/materials/processes, or performance consequences/effort/competition). Typically, the PDC-HS is used with clinicians and therapists. The purpose of this study is to extend Carr et al. by evaluating the PDC-HS in assessing the clinical performance of graduate-level research assistants working at a specialized clinic for the assessment and treatment of severe behavior disorders. For each participant, three supervisors, the study investigator and the participants themselves completed the PDC-HS with respect to the performance concern. Results of the PDCH-HS showed variability in congruence across the three groups of respondents. Due to the occurrence of the global coronavirus disease 2019 (COVID-19) pandemic during the study's investigation, the project was modified to assess different clinical performance involving safety procedures. The PDC-HS was re-administered to assess participants' cleanliness behavior and a subsequent targeted intervention was designed. Results showed no improvement of performance for 4/4 participants in the nontargeted intervention for clinic session performance and an increase for 1 participant in the targeted intervention for the cleanliness performance. Implications of PDC-HS results and limitations are discussed.
Development and Disruption of Collateral Behavior and DRL Performances: A PORTL Exploration
One schedule of reinforcement that is used to decrease the rate of a target behavior is differential reinforcement of low rates (DRL). During this schedule, reinforcement is delivered for a target response if it occurs after a certain amount of time has passed since the last instance of this target response. The current study used a table-top game called PORTL and college student participants to investigate how collateral patterns develop and are disrupted during DRL schedules. After the participant developed a collateral pattern of behaviors with the objects, the researcher removed one of the objects that was part of the pattern and waited for a new pattern of behaviors to develop. Once the participant developed a new collateral pattern, the researcher removed a second object. This continued until there was only one object present. Results showed that the rate of reinforcement decreased following the removal of each object, then slowly increased as a new pattern developed.
Selecting Variability in Interlocking Behavioral Contingencies
The current study explored how the variability or lack thereof in interlocking behavioral contingencies (IBC) may be brought under contextual control. Four undergraduates (two dyads) students participated in the current study. Dyads were instructed to play a game on a computer screen with the goal to earn as many "Congratulations" as possible. An ABABAB reversal design was used. A Lag 1 schedule of cultural consequence delivery for IBC topography was set in the variability (VAR) condition. During the repeated (REP) condition only one IBC topography was reinforced. For one of the two dyads, the variability of IBC topography was brought under contextual control. It is important to explore the behavioral processes at the cultural level to understand prediction and control of cultural phenomena.
Variability in the Natural World: An Analysis of Variability in Preschool Play
Children acquire many skills through play. These range from fine and gross motor skills, social skills, problem-solving, to even creativity. Creativity or creative engagement is frequently a component in early preschool curricula. A pivotal repertoire to engage in behaviors deemed creative, such as art, storytelling, problem-solving, and the like, is the ability to vary one's responses regardless of the specific repertoire. Researchers have developed methods to produce response variability. However, notwithstanding the significant contributions from the literature for prompting response variability, it remains unclear how much variation in responding is socially appropriate. To fill this research gap, the purpose of this study is to characterize and understand the different ways preschool children commonly interact with the activities and materials present in a preschool classroom. In our study, we assessed children's repeat item interactions, novel item interactions, and time allocation across seven concurrently available activity centers. A multifarious pattern for item interactions emerged across children. Some children had restricted levels of novel item and center interactions, while other children had more varied novel item and center interactions. However, the variance in interactions was predominantly controlled by the center type. This study bolsters our understanding of variability and creativity within a school setting, but more importantly, it informs the task of selecting goals for applied practice with children who have restricted play or interests.
Cultivating Liberation: The Effects of Collective Shaping on Context and Power Dynamics within Social Justice Narratives
Social issues are becoming increasingly apparent. More people are experiencing the impact of social issues directly and through their media consumption. It is important to understand and reflect on our collective impact on the media and how the media affects the collective. The purpose of the present study was to evaluate the effects of a collaborative workshop (collective shaping) and a verbal community that examined media depictions of social justice and injustice related to context and power dynamics. The effects of the workshop were evaluated using an A-B design with multiple probe measures across three participants. During the pre-, probe, and post-training assessments, participants watched videos and responded to a written prompt. Results of the study suggest that written responses were not adequately trained during the workshop. However, anecdotally, participant's verbal responding shifted drastically during the training workshop. The results are discussed within the context of the training apparatus, effects the workshop had on the participants and researchers, and progression forward.
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