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Keywords:

  • autism;
  • discrimination training;
  • speech;
  • stimulus–stimulus pairing;
  • vocalizations

Abstract

We evaluated the effects of operant discrimination training (ODT) on the vocalizations of 3 boys with autism. We compared ODT to a stimulus–stimulus pairing (SSP) condition and a control condition in an adapted alternating-treatments design. ODT increased the target vocalizations of all participants compared to the control condition, and its effects were similar to SSP. All participants preferred ODT to SSP.