0 02:04 Non-Verbal Yes/No: Ph1 Nodding/Shaking His Head with Imitation This phase is designed to teach a student to imitate shaking and nodding of the head.
0 02:04 Non-Verbal Yes/No: Ph2 Shaking His Head to Reject/Deny an Item This phase is designed to teach a student to use the head movements as the therapist fades their modeling.
0 02:04 Non-Verbal Yes/No: Ph3 Nodding to Indicate He Wanted The Item This phase is designed to teach a student to use the head movements as the therapist fades their modeling further.