Adolescent Self-Mutilating Behaviors: Experiential Avoidance Coupled with Imitation? Page: 63
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academy participants who reported experiential avoidant behaviors differed from their
counterparts only in that they reported significantly higher scores on the WBSI (see Table 25).
Hypothesis 4b: Adolescents who reported currently engaging in multiple experiential avoidance
behaviors would report greater experiential avoidance than adolescents who reported engaging in
only one form, or no forms. In addition, adolescents who reported engaging in only one form of
experiential avoidance behavior would report greater experiential avoidance than adolescents
who reported engaging in no forms.
This hypothesis was first tested by initially separating participants into three groups based
on response: Group 1 (no evidence of EA behaviors), Group 2 (evidence of one EA behavior),
and Group 3 (evidence of multiple EA behaviors). The last group, Group 3 (n = 35), was
comprised of individuals with two or more of the following four elements: an RSM Status Score
of 4, significant elevations (T> 60) on the APS-SF Eating Disturbance (EAT), Substance Abuse
(SUB), and/or Suicide (SUI) clinical scales. Group 2 (n = 45) was comprised of individuals with
only one of the aforementioned elements. Group 1 (n = 131) included individuals with no
evidence of these elements.
Repeated one-way analysis of variances (ANOVAs) indicated that the three experiential
groups differed significantly on the AFQ-Y, F (2, 208) = 15.02, WBSI, F (2, 207) = 21.51, and
TAS-20, F (2, 208) = 19.00, all p < .0002 (see Table 26), with scores increasing as a function of
the number of functionally equivalent, experiential avoidance behaviors. Effect sizes (partial eta-
squared) were large for each of the comparisons (Ep2= 13, .17, and .16, respectively). Tukey
HSD post-hoc tests indicated that there were significant differences between Groups 1 (no EA)
and 2 (one EA), and between Groups 1 (no EA) and 3 (multiple EA) on the AFQ-Y and WBSI,
at the p < .01 level. However, the pattern shifted for the TAS-20, in that there were significant63
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Howe-Martin, Laura S. Adolescent Self-Mutilating Behaviors: Experiential Avoidance Coupled with Imitation?, dissertation, August 2008; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc9087/m1/72/: accessed April 19, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; .