What got in the way? Caregiver-reported challenges to home practice of assigned intervention skills.

Background: Evidence-based intervention (EBI) effectiveness is hindered by low rates of caregiver home practice, or caregiver rehearsal of intervention skills at home. Although home practice is essential to intervention success, we know little about what makes home practice difficult to complete. We sought to identify the challenges caregivers face when attempting home practice assignments within the context of community implementation of a family-based preventative EBI. We also aimed to identify barriers, perceived need, and implementation-related factors that may contribute to frequency of home practice challenges.

Methods: The family-based preventative intervention was delivered to caregivers and adolescents in three public middle schools in North America within a randomized efficacy-effectiveness hybrid trial. Caregivers (N = 233) completed worksheets in which they reported challenges to home practice of intervention skills. Caregiver-endorsed challenges were coded for emergent themes and categorized into higher-order home practice challenge domains. Additional data was gathered through multiple methods. In addition to descriptive analyses, multilevel linear regressions were conducted to identify factors associated with frequency of home practice challenge domains.

Results: Over 85% of caregivers reported one or more home practice challenges. Challenges fell into six domains: daily stresses, cognitions/beliefs about the intervention/practice, caregiver wellness/regulation, adolescent responsiveness, relevance/acceptability of intervention or assignment, and external barriers to practice. Adolescent externalizing symptoms, academic performance, and caregiver participation in the English-language intervention group (compared to Spanish-language delivery) were associated with greater frequency of reported challenges.

Conclusions: Among caregivers already attending intervention sessions, specific support to overcome challenges in daily stresses and beliefs about the intervention/practice can support greater home practice compliance, which in turn may impact overall intervention effectiveness. Findings suggest that providing services in caregivers' preferred language may avert potential challenges. Further research into home practice challenges is necessary to identify appropriate home practice implementation supports.

Plain Language Summary: Low rates and poor quality of caregiver home practice of intervention skills hampers intervention effectiveness, but no prior studies have identified the difficulties caregivers face when attempting home practice of intervention skills and their rates of occurrence. Within a community implementation of a family-based preventative intervention, we found that difficulties were common and largely fell in the domains theorized to impact engagement, such as daily stresses and beliefs about the intervention/practice. Findings also suggest that providing services and materials in caregivers' preferred language may avert potential home practice challenges. By identifying common home practice challenges and correlates of different challenges, our findings point to a need to develop appropriate and effective home practice implementation support.