Effectiveness of interventions influencing academic behaviors: A quantitative synthesis of single-subject researches using the PEM approach.

Abstract

The purpose of the present study is twofold: (a) to test the repeatability of the superiority of the percentage of data points exceeding the median of the baseline phase (PEM) approach over the percentage of nonoverlapping data (PND) approach for the synthetic analysis of single-subject researches, and (b) to demonstrate the application of the PEM approach in conducting a quantitative synthesis of single -subject researches, which investigated the effectiveness of interventions on academic behaviors. The analyzed studies were obtained through a computer-assisted search of the relevant databases and a hand search of the relevant behavior analysis journals. The major finding demonstrates the repeatability of the superiority of the PEM approach over that of the PND.