Effectiveness of Video Modeling Intervention for Children with Disabilities: A Meta-Analysis of Single-Case Research Design Studies

This meta-analysis examined the intervention effects of video modeling as an educational tool for students with disabilities. There is currently little consensus on the conditions under which video modeling is most effective. Using non-overlap metrics as effect indices, the current meta-analysis of video modeling interventions was conducted by synthesizing single-case research studies published between 2013 and 2019. A systematic literature search using two databases (ERIC and PsycINFO) and screening based on the inclusion criteria yielded 48 studies for analysis. Calculation of the four non-overlap indices (percentage of non-overlapping data, non-overlapping of all pairs, improvement rate difference, and Tau-U) suggested that video modeling interventions were moderately to largely effective in most studies. The effectiveness score was greater for videos that included adults as models. Furthermore, effectiveness scores can be enhanced when video modeling is used in conjunction with reinforcement strategies or implemented as part of an intervention package.