Abstract: | A pre‐intervention assessment was conducted to determine the conditions under which rumination by a 19‐year‐old man with autism was most and least likely to occur. The results of the assessment suggested that rumination was least likely when the participant did not consume liquids with meals and when he consumed peanut butter during meals. Based upon the results of the assessment, an intervention consisting of rescheduling access to liquids (i.e., no liquids during meals) was evaluated across both breakfast and lunch at the participant's school placement. Results suggest that the intervention was effective in reducing rumination. Copyright © 2003 John Wiley & Sons, Ltd. |