Intimate partner violence (IPV) occurs between two individuals who have formerly been or are currently in an intimate relationship. IPV includes physical violence, sexual violence, threats of physical or sexual violence, and emotional abuse (Kernic, Wolf, & Holt, 2000; Rennison & Welchans, 2000). Experiencing IPV is associated with a serious impact on psychological health (Afifi, MacMillan, Cox, Asmundson, Stein, & Sareen, 2008; Calvete, Corral , & EstΘvez, 2008). Research on other forms of trauma indicates that experiential avoidance (EA) plays an important role in psychological distress and psychopathology. Thus, it was hypothesized that EA would play a key role in the impact of IPV. Using the Baron and Kenny (1986) method, the current study examined whether EA was a mediator between IPV severity and psychological distress, and whether EA was a mediator between IPV severity and PTSD symptomology, more specifically. In addition, mediational analyses were run to determine if suppression changed the relationships between IPV severity and psychological distress, or IPV severity and PTSD symptomology. Using the same methods, EA and suppression were both also examined as mediators between psychological/verbal abuse severity and psychological distress, and between psychological/verbal abuse severity and PTSD symptomology. No significant results were found in a treatment sample. However, several mediations and partial mediations were found in an undergraduate sample. These findings are likely to impact treatment of individuals who have experienced IPV and demonstrate the utility of acceptance and mindfulness based interventions such as ACT with this population.

Experiential avoidance (EA) is a process in which a person attempts to avoid, dismiss, or change experiences such as emotions, behaviors, and thoughts. EA is associated with a number of psychological disorders and is generally harmful to psychological well-being. Various studies have explored the role of EA as a mediator, while others have studied EA as a moderator. The current study aimed to further understand and broaden the knowledge of the role of EA in regard to trauma, substance abuse, aggression, and impulsivity by examining relationships between these variables with EA as a mediator and as a moderator. Experientially avoidant behaviors (i.e., substance abuse, aggression, and impulsivity) were related to higher levels of EA. EA was found to partially mediate the relationship between the number of traumatic experiences and posttraumatic stress disorder (PTSD) symptoms, as well as the relationship between substance abuse and PTSD. EA was also found to moderate the relationship between PTSD symptoms and aggression. Findings from the present study as well as its limitations and future directions for research are discussed.

Due to the universal nature of stress, and its impact on physical health, it is important to understand how it is related to other psychological variables. The current study was undertaken in order to investigate whether an individual's cardiovascular reactivity to stress is impacted by their level of experiential avoidance, as measured by the Acceptance and Action Questionnaire (AAQ-II). Individuals who are experientially avoidant are more likely to attempt to escape or prevent certain experiences and make effort to change them or avoid the contexts in which they occur. Previous research has indicated that experiential avoidance is related to some measures of physiological stress. One hundred twenty-eight college students (ages 18-29) were administered a questionnaire that included measures of general stress, experiential avoidance, and depression. After completing the questionnaire, a baseline reading of cardiovascular activity was taken. After that baseline reading, research assistants administered the Trier Social Stress Test (TSST), a series of tasks designed to induce physiological stress that consists of an anticipation period, a speech, and a math task. Measurements of cardiovascular activity were taken throughout administration. It was hypothesized that increased experiential avoidance would predict higher blood pressure and heart rate both before engaging in the stress task. It was also hypothesized that increased experiential avoidance would predict higher cardiovascular reactivity during administration of the TSST. As was expected, higher experiential avoidance predicted higher baseline heart rate. This finding adds to the body of research that supports the connection between psychological constructs and physiological reactivity. However, experiential avoidance did not significantly predict baseline blood pressure or any measures of physiological reactivity during the TSST.

Mechanisms of change in psychotherapy must be empirically investigated to shed light on how particular therapies work, as well as common mechanisms that may be at work across modalities. The current study investigated a proposed mechanism of change in a mindfulness intervention; this proposed mechanism, experiential avoidance (EA), may function more broadly as a mediator of change across multiple therapies. The primary hypothesis was that gains in mindfulness over the course of Mindfulness-Based Stress Reduction (MBSR) would be associated with reductions in negative affect, and that changes in EA would mediate the relation between changes in mindfulness and negative affect. The role of EA in mediating the effect of mindfulness on positive affect, disability, and life satisfaction was also investigated. Participants (N = 106) completed questionnaires before and after an 8-week MBSR program. A subset of participants (n = 74) completed questionnaires at the mid-point of treatment, and recorded time spent on mindfulness practice and level of relaxation after homework completion. Mediation analyses were conducted in which relations between change in predictor (mindfulness), mediator (EA), and outcome measures over the course of the intervention were assessed using regression steps, followed by PRODCLIN. Participants reported significant improvements in mindfulness, reductions in EA and disability, and improved affect and life satisfaction from pre- to post-MBSR. The relation between increased mindfulness and reduced negative affect over the course of the intervention was partially mediated by reduced EA. No evidence was found for relaxation as an additional mediator of the relation between mindfulness and negative affect. The relation between increased mindfulness and positive affect over the course of the intervention was fully mediated by decreased behavioral avoidance. Reductions in behavioral avoidance also fully mediated the relation between increased mindfulness and reduced disability. The relation between increased mindfulness and increased life satisfaction was mediated by EA. More mindfulness practice was linked with greater positive affect; the relation between practice and positive affect was mediated by EA. This study offers support for EA as a mediator of the effect of mindfulness on multiple outcomes, while highlighting a mechanism of change that may pertain across psychotherapeutic modalities.

This report examines the masculine gender norm of restrictive emotionality, in terms of its effects on mental health and its theoretical relationship to experiential avoidance. This norm has rarely been examined in the context of emotion research despite its similarity to experiential avoidance and emotion dysregulation constructs such as expressive suppression. After reviewing the psychological impact of restrictive emotionality, as well as how it may relate to other maladaptive processes, the report proposes an intervention to reduce adherence to this gender norm. Because traditionally masculine men are often averse to psychotherapy, a writing intervention is hypothesized to benefit this population. Specifically, a guided writing based in contextual reappraisal is posited to help men reduce psychological distress by reducing levels of restrictive emotionality and experiential avoidance. Contextual reappraisal is thought to help increase acceptance of one’s emotions, thus reducing the need to avoid or restrict emotional expression. A writing contextual writing intervention could benefit emotionally restrictive men by encouraging a non-evaluative stance toward vulnerable emotions while offering a private, non-threatening outlet for expression. / text

Experiential avoidance (EA) is an emotion-regulation strategy used to control or avoid unpleasant internal experiences. Experimental studies, however, have shown that EA is associated with an ironic increase in unpleasant experiences. While single manipulation laboratory experiments can demonstrate the immediate ironic detrimental effects of EA, a different methodology is needed to establish how such ironic processes unfold over time in the natural environment. The current study uses a longitudinal design and daily-diary methodology to examine daily associations between EA and negative affect (NA) over a three-week period among college-students who initially reported high levels of psychological distress. A daily measure of state EA based on several avoidant behaviors (thought suppression, emotion suppression, distraction, reflective pondering, and lack of experiential acceptance) was developed for this study. Before and after making daily web-based reports of EA and NA for 21 consecutive days, participants completed a standardized checklist of psychological symptoms, with pre-post change scores on this measure serving as an index of symptomatic improvement. Multilevel modeling analyses showed that, as predicted, symptomatic improvement was associated with decreasing trajectories of EA and NA during the 21-day study period. More symptomatic improvement was associated with weakening (decoupling) of same-day EA-NA links over time. Contrary to predictions, same-day and one-day lagged associations between NA and EA were not associated with symptomatic change. Additional multilevel analyses showed that symptomatic worsening was associated with more daily EA, over and above what was accounted for by daily NA. Likewise, traditional between-person regression analyses showed that overall mean levels of daily EA (aggregated across days) predicted symptomatic worsening, even after statistically accounting for mean levels of daily NA. The results of this study provide partial support for the hypothesis that EA and NA are related to each other in an ironic positive feedback loop that unfolds over time and that symptomatic improvement may involve a process by which EA and NA both decrease and decouple from each other over time. These findings emphasize the importance of using methodologies that track the relationship between EA and its consequences over time using within-person analyses, rather than solely relying on between-person designs.

Peer rejection (PR) can be damaging to cognitive and emotional well being and lead to risky behavioral consequences (e.g., violence, increased peer pressure susceptibility), particularly for adolescents (Sebastian et al., 2010; Williams, 2007). Interventions designed to minimize the impact of and repair damage related to PR in youth have been somewhat successful (e.g., Mikami et al., 2005), although the need for further research into potentially pliable mechanisms underlying adolescent peer relationships remains. One suggested mediating factor is experiential avoidance (EA), which is the major target of acceptance- and mindfulness-based interventions such as Acceptance and Commitment Therapy (ACT; see Hayes, 2004 for a review). The present study built on the recommendations of Biglan et al. (2008) and Theodore-Oklota et al. (2014) in designing and implementing a prevention program aimed at reducing EA of PR experiences, with the hope of minimizing cognitive, emotional and behavioral consequences of PR. For this initial pilot, selected ACT components (acceptance, cognitive defusion, and values) were presented in age-appropriate form to six participants over five individual intervention sessions. The program was successful in reducing EA and cognitive fusion and/or improving mindfulness and acceptance for most participants, with some exceptions. Additionally, results showed a decrease in existing symptomatology for several participants (e.g., anger, depression, poor self-concept, overall stress). However, value congruence was not significantly improved for any of the six completers. Results are discussed in terms of theoretical implications and recommendations for further research, particularly in terms of how the existing pilot intervention could be altered and augmented to maximize effectiveness. / Ph. D.

This study sought to generalize the Psychological Inventory of Criminal Thinking Styles (PICTS) factor structure using the PICTS-Layperson (PICTS:L) in a community sample. The current study also sought to replicate previous findings that criminal thinking mediates the relationship between trauma and criminal behavior. Additionally, this study sought to explore if and/or how experiential avoidance (EA) contributes to the relationships between post-traumatic symptoms (PTS) and criminal thinking, and criminal thinking and criminal behavior. Community members recruited through Mturk, completed online measures of PTS, EA, criminal thinking, criminal behavior, and a demographics questionnaire. A confirmatory factor analysis (CFA), which was conducted to assess the PICTS:L factor structure in an online community sample, demonstrated the hierarchical second order factor structure was a good fit after problem items were removed. Mediation analyses results found that criminal thinking mediated the relationship between PTS and criminal behavior therefore replicating previous findings. Moderated mediation analyses were conducted to determine if EA moderates the relationships between PTS and criminal thinking, and criminal thinking and behavior. Findings suggest that EA plays a significant role, particularly for women who endorse relatively low EA. These and exploratory findings, limitations, implications, and future directions for work in these areas are discussed.

<p>Although it has been hypothesized that chronic emotional invalidation by a parent may have lasting effects on later ability to regulate emotions, and possibly increase the chances of experiencing symptoms of psychopathology, the possible mechanisms surrounding this relationship have not been adequately explored. Further, many investigations have used retrospective reports of invalidation, which may be subject to bias. This pilot study of 19 adolescent-parent dyads explored associations between invalidation, experiential avoidance, and child symptoms of psychopathology in a cross sectional design. Retrospective reports of invalidation as well as an observationally-coded measure of invalidation during laboratory discussions of emotion were utilized, and compared for agreement. The feasibility and acceptability of a larger investigation of these questions is also discussed. It was found that adolescent-reported recalled invalidation seemed to show a stronger pattern of association with observationally coded invalidation than do parent reports. Additionally, several alternative mechanistic hypotheses showed some promise for further exploration. This pilot study was found to be acceptable to participants; however, recruitment of adolescents from a clinical population - and their parents to participate with them - was the greatest obstacle to feasibility for a larger study.</p> / Dissertation

Self-compassion and self-forgiveness appear to have much in common, as both relate to one’s self-regard during challenging circumstances; however, their empirical relationship is largely yet to be explored. The present study examines theoretical and empirical areas of overlap and proposes a theory of their relationship, including its possible impact on health. Self-compassion and self-forgiveness were proposed to have a direct relationship that may be mediated by reduction in rumination, shame, and experiential avoidance. These factors together were also hypothesized to have a positive impact on health functioning. The current study tested these models in a sample of undergraduate students (n = 199). In parallel mediation analysis, selfcompassion and self-forgiveness were related to one another and this association was partially mediated by shame, only. As such, neither rumination nor experiential avoidance were included in subsequent analyses. In serial mediation analyses, self-compassion, shame, and selfforgiveness were found to affect health outcomes in various ways. For psychological distress, the association of self-compassion was partially mediated by shame and self-forgiveness, in an indistinguishable fashion. For mental health status, self-compassion was found to have a significant direct effect, only. For both somatic symptoms (full mediation) and physical health status (indirect only effect), the association of self-compassion operated through self-forgiveness both alone and linked with shame. As these two emerging areas in the psychological literature continue to mature, researchers should prioritize both integration between and nuances within these constructs in order to develop a more complete understanding of self-compassion, selfforgiveness, and their implications for health.