Volume 38, Issue 1 (2009)
Assessing Social Validity of School-Wide Positive Behavior Support Plans: Evidence for the Reliability and Structure of the Primary Intervention Rating Scale
Kathleen Lynne Lane, Jemma Robertson Kalberg, Allison Leigh Bruhn, Steven A. Driscoll, Joseph H. Wehby, Stephen N. Elliott
Abstract. This study provides initial evidence for the reliability and structural validity of scores from the Primary Intervention Rating Scale (Lane, Robertson, & Wehby, 2002), an adapted version of the Intervention Rating Profile-15 (Witt & Elliott, 1985) designed to assess faculty’s perceptions of social validity of primary prevention plans prior to intervention onset. Results indicated the Primary Intervention Rating Scale is a one-factor instrument, with high internal consistency and utility. These results were found to replicate across educators from elementary, middle, and high schools. In addition, there was a significant, positive relation between social validity and treatment integrity when examining data at the school-site level. Limitations and future directions are offered.
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