Replication of a high-probability request sequence with varied interprompt times in a preschool setting.

An intervention for noncompliance consisting of a series of requests promoting a high probability of compliance followed either 5 s or 20 s later by a request with a low probability of compliance was implemented with a preschool child with autism. Results indicated that applications of the request sequence with a shorter interprompt time resulted in higher rates of compliance, and longer interprompt times resulted in near-baseline rates of compliance.