Toward a Technology of Formative Triangulation: A Mixed Methods Case Study of Socially Valid Intervention Programming

Abstract Service-delivery models that promote collaboration with families and systematically program for generalization may produce socially significant and generalized outcomes. However, valid empirical demonstrations of the impact of these interventions on generalized outcomes are difficult to generate via single case design research. Ongoing measures of caregiver report of behavior change and intervention challenges could be a valuable metric for guiding formative evaluation of behavior change programs. In this paper, we present a fully integrated mixed methods case study using convergent-design elements to demonstrate how incorporating qualitative and quantitative measures focused on behavior that occurred outside of formal therapy sessions informed socially valid and generalized outcomes.