Predictors of engagement with between-session work in Cognitive Behavioural Therapy (CBT)-based interventions: a mixed-methods systematic review and "best fit" framework synthesis.

Between-session work (BSW) acts as the vehicle to translate skills learnt in therapy sessions into adaptive changes in everyday life, a key goal in Cognitive Behavioural Therapies (CBT). Despite a well-established relationship between engagement with BSW and enhanced treatment outcomes, difficulties completing between-session tasks are common and factors affecting patient engagement with BSW are poorly understood. This mixed-methods systematic review and "best fit" framework synthesis explored predictors of engagement with BSW in CBT-based interventions. Comprehensive searches were conducted across five databases, identifying 59 eligible studies. This combined theory and empirical evidence approach depicted ten predictor themes related to between-session engagement, spanning individual, relational and contextual concepts. While ambiguous findings were generated by existing evidence, several factors emerged as relatively consistent predictors of engagement with BSW: positive patient beliefs regarding BSW and treatment such as perceived helpfulness, and practitioner competency in planning and reviewing BSW, including providing a rationale and addressing difficulties were associated with greater engagement. Conversely, patient in-session resistance, including counter change talk, was an indicator of disengagement between-sessions. The impact of patient symptomology, sociocultural environment, practitioner beliefs and the therapeutic relationship is unclear. The conceptual model presented offers a testable framework for researchers and a guideline for practitioners.

Homework as a driver of change in psychotherapy.

BACKGROUND AND OBJECTIVES: The utilization of Between-Session Homework (BSH) holds a longstanding tradition in the field of psychotherapy. Significantly, it serves as a pivotal catalyst for change within behavioral and cognitive-behavioral therapies, and has also garnered endorsement within psychodynamic and humanistic-experiential therapies. While our current conceptualization of BSH is characterized by assimilation and integration, diversity prevails in how BSH is incorporated into the treatment plan, spanning various therapy stages, thus necessitating a customized therapist-client interpersonal dynamic. Far from being a panacea, the employment of BSH emerges as a highly sophisticated and intricate clinical methodology, demanding a high degree of therapist proficiency and competence to facilitate client engagement. METHODS: In this introductory paper, we present an issue of the Journal of Clinical Psychology: In Session that exemplifies the diverse modalities through which BSH can be integrated into clinical practice across various client demographics and within distinct psychotherapeutic paradigms. We place specific emphasis on the pivotal role of BSH and its interplay with proposed mechanisms of change throughout the course of treatment. RESULTS: Initially, we provide an overarching view of the subject and expound on empirical research substantiating the efficacy of BSH in psychotherapy. Subsequently, we delve into strategies for adeptly integrating and monitoring BSH within clinical practice. CONCLUSIONS: Our primary objectives encompass affording readers a more lucid comprehension of (1) the content and nature of homework; (2) the influence of BSH on treatment outcomes; and (3) the ways through which therapists can foster client engagement with BSH. Finally, we introduce the six papers comprising this issue.