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The effects of ARCS-based confidence strategies on learner confidence and performance in distance education.

The effects of ARCS-based confidence strategies on learner confidence and performance in distance education.

Date: May 2006
Creator: Huett, Jason Bond
Description: The purpose of this research was to manipulate the component of confidence found in Keller's ARCS model to enhance the confidence and performance of undergraduate students enrolled in an online course at a Texas university using SAM 2003 software delivery. This study also tested whether the aforementioned confidence tactics had any unintentional effect on the remaining attention, relevance, and satisfaction subscales of the ARCS model as well as on learners' overall motivation for the class and the instructional materials. This study was conducted over a 5.5-week period with an initial sample of 81 total students. Two quantitative surveys were used to measure confidence and motivation: (a) the Course Interest Survey (CIS), and (b) the Instructional Materials Motivation Survey (IMMS). The results indicated that the treatment group showed statistically greater gains than the control group in terms of learner confidence on the CIS but not the IMMS. In terms of performance, the treatment group outperformed the control group on all of the individual posttest measures and on the overall aggregate mean performance score. The results showed no statistically significant difference on the attention subsection of the ARCS model. However, statistically significant differences were noted for the relevance and satisfaction subscales of ...
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Studies in regiospecific oxidation reactions of 1-methyl-pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione.

Studies in regiospecific oxidation reactions of 1-methyl-pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione.

Date: May 2004
Creator: Vappala, Indu
Description: Baeyer-Villiger oxidation of 1-methylpentacyclo[5.4.0.02,6.03,10.05,9] undecane-8,11-dione, performed by using m-chloroperbenzoic acid in 1:1 molar ratio, resulted in the formation of monolactone. The corresponding dilactone, was synthesized by reacting 1-methyl-PCU-8,11-dione with m-chloroperbenzoic acid in 1:2 molar ratio. 6-Methyl-1,4,4a,8a-tetrahydro-1,4-methanonaphthalene-5,8-dione was converted into the corresponding exo-6,7-monoepoxide via treatment with 30% aqueous hydrogen peroxide. Epoxidation of this monoepoxide by using m-chloroperbenzoic acid afforded the corresponding bis-epoxide. Ceric ammonium nitrate (CAN) promoted oxidation of 1-methyl-PCU-8,11-dione afforded "methylated lactones" and a "methylated alkene."
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NMR Study of n-Propyllithium Aggregates

NMR Study of n-Propyllithium Aggregates

Date: December 2002
Creator: Davis, James W.
Description: A variable temperature 1H, 13C, and 6Li NMR study of n-propyl-6Li-lithium showed five different aggregates, similar to that in the literature as (RLi)n, n= 6, 8, 9, 9, 9. There were also a number of additional new species, identified as lithium hydride containing aggregates. Unexpectedly, a series of 13C{1H} 1-D NMR experiments with selective 6Li decoupling showed evidence for 13C-6Li spin-spin coupling between the previously reported (RLi)n aggregates and various hydride species.
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An NMR Study of Trimethylsilylmethyllithium Aggregates and Mixed Trimethylsilylmethyllithium/Lithium trimethylsilylmethoxide Aggregates

An NMR Study of Trimethylsilylmethyllithium Aggregates and Mixed Trimethylsilylmethyllithium/Lithium trimethylsilylmethoxide Aggregates

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Date: December 2004
Creator: Medley, Marilyn S.
Description: An NMR spectroscopy study of trimethylsilylmethyllilthium, TMSM-Li, indicates that TMSM-Li exists as two different aggregates in cyclopentane solution. Using previously reported colligative properties of TMSM-Li in different solutions in connection with new 13C and 6Li NMR data collected in this study, aggregation states were assigned as octamer and hexamer. Low temperature 13C and 6Li NMR peak intensities indicated an equilibrium exists between the two aggregates that shifts toward the octamer as the temperature decreases. ΔH was calculated to be 5.23 + 0.15 kcal/mol and ΔS was calculated to be 17.9 + 0.6 eu for the hexamer/octamer equilibrium system. Samples of TMSM-Li were mixed with TMSM-OH in attempts to form mixed alkyllithium/lithium alkoxide aggregates. 13C NMR data for these mixtures gave inconclusive results whether or not these compounds formed, which is different from other primary alkyllithium compounds studied in the past. A study of neopentyllithium, NpLi, indicates only one aggregate in solution with the aggregation state unknown using low temperature 13C NMR spectroscopy.
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A Study to Determine the Need for Additional Programs in Vocational and Industrial Arts Education at Lawrence D. Bell High School

A Study to Determine the Need for Additional Programs in Vocational and Industrial Arts Education at Lawrence D. Bell High School

Date: January 1968
Creator: McNeese, Charles H.
Description: The purpose of this study was to indicate if there exists a need for additional learning experiences in the area of vocational and industrial arts education at Lawrence D. Bell High School. The information acquired from the check list, combined with other related studies, should help establish valid guide lines for curriculum development in this area. This study should provide information as to whether or not the needs of the terminal student and the college preparatory student are dissimilar.
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A Survey and Comparison of Educational and Experiential Qualifications of Selected City Recreation Directors in Texas

A Survey and Comparison of Educational and Experiential Qualifications of Selected City Recreation Directors in Texas

Date: August 1970
Creator: Johnson, Steven L.
Description: A major problem in today's parks and recreation departments is the selection of qualified leaders. The magnitude and quality of recreation programs is apparently directly related to leadership. Information pertaining to present qualifications of recreation leadership is important in selecting or utilizing future recreational leaders.
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Baeyer-Villiger Oxidation of 1,7- & 1,9-dibromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione

Baeyer-Villiger Oxidation of 1,7- & 1,9-dibromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione

Access: Use of this item is restricted to the UNT Community.
Date: May 2004
Creator: Akinola, Adeniyi O.
Description: Baeyer-Villiger oxidation of 1,9-dibromopentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione (1,9-dibromo-PCU-8,11-dione) was performed by using an excess amount of m-chloroperbenzoic acid (3 equivalents) and resulted in the formation of the corresponding monolactone. The reaction would not proceed to the dilactone stage. The structure of the reaction product was established unequivocally via single crystal X-ray diffraction. Baeyer-Villiger oxidation of 1,9-dibromo-PCU-8,11-dione using ceric ammonium nitrate (CAN) was also performed and afforded a mixture of lactones. Only one of these lactones, which also contained an alkene functionality, could be isolated and characterized. 1,7-dibromo-PCU-8,11-dione was also reacted with CAN, yielding the mono-lactone, which has also been characterized.
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A model for developing and disseminating multimedia materials for teacher educators.

A model for developing and disseminating multimedia materials for teacher educators.

Date: December 2002
Creator: Hodges, Linda S.
Description: The purpose of this study was to develop a model that would enhance the development, dissemination, and adoption of educational multimedia materials. The grounded theory definition of open coding was used to analyze data collected from the 3-year Technology Leadership Web Library Project at the University of North Texas. Weekly meeting minutes, email communication, reports, notes, questionnaires, and surveys were examined to determine major factors involved in the process of product development and dissemination. From the analysis of this study, five major factors in product development and dissemination were identified. These factors were leadership, team dynamics, expert advisors, feedback, and consumers. The synthesis of the factors led to the development of the PROMOTE (process revolving around ongoing management of team and evaluative feedback) model. The PROMOTE model is based on the establishment of a system that includes leadership, development team, and expert advisors at its center. The system is tied together with well-established feedback loops for stages of evaluation. The PROMOTE model is iterative and uses consumer feedback to generate new products. The PROMOTE model differs from other product development and evaluation models both in the focus of the process and the nature of the evaluation feedback.
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Preservice teachers' attitudes toward and knowledge about cooperative learning in Kuwait: A quasi-experimental study

Preservice teachers' attitudes toward and knowledge about cooperative learning in Kuwait: A quasi-experimental study

Date: December 2001
Creator: Al-Dawoud, Afeefa
Description: The issue of developing effective teacher preparation and professional programs by providing effective teaching and learning strategies to prepare teachers to teach in more challenging ways and change their old ways of teaching to more powerful ones has gained great attention around the world. Cooperative learning was one of the astonishing strategies introduced by many researchers to prepare effective teachers and to solve many educational problems. Teacher educators have taken different approaches to help teachers learn and change in powerful ways. They have focused on the knowledge and attitudes of teachers in promoting their adoption of new practices through educational courses, workshops, and training. After introducing the cooperative learning strategy through a training workshop, this study investigated the knowledge of and attitude of teachers at the College of Basic Education (CBE) in Kuwait towards cooperative learning as a new teaching and learning strategy. The literature reviewed the historical and practical use, theoretical roots, different models, and outcomes of cooperative learning. In addition, (1) teachers' knowledge and attitudes as factors affecting implementation and (2) preservice teacher preparation and training in the use of cooperative learning were reviewed. An attitude survey and a knowledge test were developed based on Bouas, (1993) survey ...
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An Analysis of Attitudes toward the Role of the PTA and its Communication of Goals and Programs

An Analysis of Attitudes toward the Role of the PTA and its Communication of Goals and Programs

Date: August 1973
Creator: Novak, Rynell S.
Description: The purpose of this study is to examine some aspects the Parent Teacher Association through designing a questionnaire, administering it to individuals involved to some degree in the organization, evaluating the data received, and then making knowledgeable observations about it. The specific aspects to be examined are its role and its communication of goals and programs as seen by several groups. Although the scope is limited to the Texas PTA, attitudes toward PTA in general are reflected in the responses.
Contributing Partner: UNT Libraries