Assessing Mindfulness and Acceptance Processes in Clients : Illuminating the Theory and Practice of Change

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Mindfulness- and Acceptance-Based Interventions and Processes of Change; Origins and Applications of Mindfulness Training; What Is Changing When People Participate in Mindfulness- and Acceptance-Based Treatments?; How Do We Know If Change in a Particular Process Is Responsible for Improved Well-Being?; How Distinct Are These Processes of Change?; What About Other Processes?; Conclusions; References; 1 Mindfulness and Decentering as Mechanisms of Change in Mindfulness- and Acceptance-Based Interventions; Mindfulness; Decentering; Conclusions; References. Appendix A: Five Facet Mindfulness Questionnaire (FFMQ)Appendix B: Experiences Questionnaire (EQ); 2 Psychological Flexibility as a Mechanism of Change in Acceptance and Commitment Therapy; What Is ACT?; What Processes Does ACT Target?; Measuring Psychological Flexibility; Research on Psychological Flexibility as a Mediator of ACT Outcomes; Conclusions; References; Appendix: Acceptance and Action Questionnaire-II (AAQ-II); 3 Understanding, Assessing, and Treating Values Processes in Mindfulness- and Acceptance-Based Therapies; Outcomes of Targeting Breadth and Flexibility of Living. Accounting for Processes TargetedValued Living in Experimental Psychology; Valued Living in Applied Psychology; A Behavioral Definition of Values; A Technical Definition of Values; Values and Vulnerabilities; Assessing Values with the Valued Living Questionnaire (VLQ and VLQ-2); Other Values Assessments; Alternative Approaches Linking Assessment and Intervention; Conclusions; References; Appendix: Valued Living Questionnaire-2 (VLQ-2); 4 Emotion Regulation as a Mechanism of Change in Acceptance- and Mindfulness-Based Treatments; Extant Conceptualizations of Emotion Regulation. A Clinically Useful Conceptualization of Emotion RegulationTheorized Effects of Mindfulness- and Acceptance-Based Interventions on Emotion Regulation; An Acceptance-Based Measure of Emotion Regulation Difficulties; Evidence for Emotion Regulation as a Mechanism of Change in Acceptance- and Mindfulness-Based Treatments; Conclusions; References; Appendix: Difficulties in Emotion Regulation Scale; 5 Self-Compassion as a Mechanism of Change in Mindfulness- and Acceptance-Based Treatments; Defining Self-Compassion; Assessing Self-Compassion. Self-Compassion and Other Aspects of Psychological FunctioningRelationships Between Self-Compassion and Mindfulness; Effects of Mindfulness Training on Self-Compassion; Loving-Kindness and Compassion Meditation; Other Ways of Teaching Self-Compassion; Conclusions; References; 6 Spiritual Engagement as a Mechanism of Change in Mindfulness- and Acceptance-Based Therapies; Definitions of Spirituality; Approaches to Measuring Spirituality and Religiousness; Spiritual Experience and Meditation; Meditation, Mindfulness, and Spirituality: Mediating Growth