Discusses logic and interpretation problems inherent in doing quantitative syntheses of single-case research. Addresses the meta-analytic method of using percentage of nonoverlapping data, highlighting special concerns related to withdrawal designs, sensitivity to variability in behavior, social significance of behavior change, and variables that…

School-wide behavior support has experienced recent interest among educators. This approach has been embraced because of its potential for decreasing school violence and improving school climate. In this paper we examine issues related to construct, internal, external, and social validity of school-wide support as it has been conceptualized in…