Psychometric Evaluation of the Occupation-Centered Intervention Assessment.

A challenge of intervention research is the lack of a means to identify and measure clinical practice from an occupation-centered approach. The objective of this study is to establish basic psychometric properties of the Occupation-Centered Intervention Assessment (OCIA). The study is approached by establishing content validity and utility through expert panel and two focus groups. Interrater reliability (IRR) was determined through standardized video analysis and Krippendorff's alpha. Results from the expert panel and focus groups indicated an overall agreement that the OCIA was able to capture the full range of elements of rehabilitation-focused interventions for older adults (occupational, contextual, and personal relevance) and a good fit with the occupational therapy intervention process model. IRR found adequate level of agreement (α = .76). The OCIA has demonstrated initial basic psychometrics for observation of rehabilitation-focused interventions with older adults.