Further refinement of video-based brief multiple-stimulus without replacement preference assessments.

We compared the results of a brief video-based multiple-stimulus without replacement preference assessment with no access to chosen activities (MSWO-NO) to the results of the same assessment with access (MSWO-WA) with four children with autism. We also compared instructor rankings of activities to MSWO-WA results. Strong to moderate correlations between MSWO-NO and MSWO-WA assessment results were found across all participants. The correlation between MSWO-WA and instructor rankings ranged from strong to low across all participants. Implications and directions for future research are discussed.