Environmental enrichment and response cost: Immediate and subsequent effects on stereotypy


  • We thank the faculty, parents, and students at PALS Autism School. We also thank Caroline Armstrong, Karen Chan, Jemana Elsharkawi, and Marisa Wiens for their assistance with data collection.


We assessed the immediate and subsequent effects of environmental enrichment (EE) as a stand-alone intervention and when EE was combined with response cost (RC) for 5 participants using a 2-component multiple-schedule design. Environmental enrichment failed to decrease any participant's immediate engagement in stereotypy; however, the addition of RC decreased the immediate engagement in stereotypy for all participants. After the withdrawal of EE plus RC, stereotypy did not immediately increase for 3 of 5 participants.