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| Research in Developmental… | 1 |
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| Watkins, L. Theresa | 1 |
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| Reports - Research | 1 |
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Peer reviewedWatkins, L. Theresa; And Others – Research in Developmental Disabilities, 1990
Thirty-five students (age 5-21) with mental retardation completed a 10-lesson curriculum on verbal and signed vocabulary acquisition. Therapist only and therapist plus video methods resulted in higher spoken and manual sign production of targeted items compared to the video only method. Receptive vocabulary was not improved. (Author/JDD)
Descriptors: Elementary Secondary Education, Expressive Language, Instructional Effectiveness, Language Acquisition
