Preliminary Validation of the Brief Measure of Intervention Quality Scale
An assumption in the school consultation literature is that an effective consultation process facilitates an effective intervention. However, although having an effective consultation process is a crucial component, it does not guarantee the development or selection of a high-quality, evidence-based, and effective intervention within an indirect service delivery model. The Brief Measure of Intervention Quality (BMIQ) was developed to address the shortage of assessments of consultation-derived intervention quality for use in consultation efficacy and effectiveness research. Specifically, the purpose of this study was to provide preliminary evidence for the validity argument of this measure. Using an arguments-based approach to guide development and preliminary validation work, it was proposed that the BMIQ would collect defensible data indicative of intervention quality. This study was conducted in three phases. These phases included the development activities, content validation activities, and a pilot study to assess the degree to which scores from the BMIQ provided validity evidence for its interpretations and uses. In the end, the BMIQ represents a promising instrument for the evaluation of interventions developed within a consultative process.