We examined a procedure to assess preference for social interactions in individuals with intellectual and developmental disabilities. Preferences were identified in five individuals using a paired-choice procedure in which participants approached therapists who provided different forms of social interactions. A subsequent tracking test showed that participants' approaches were under control of the form of social interaction provided as opposed to idiosyncratic features of the therapists. Results of a reinforcer assessment found that the social interaction identified as preferred also functioned as a reinforcer for all five participants.
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