Performance of Adults with Developmental Handicaps on Alternate Forms of the Peabody Picture Vocabulary Test A total of 154 adults with developmental handicaps involved in a comprehensive community-based habilitation program were tested on alternate forms of the PPVT and PPVT—Revised to determine intertest reliabilities. A comparison of response profiles indicated that there was a significant degree of correspondence in general performance using alternate forms (p ... Reports
Reports  |   August 01, 1986
Performance of Adults with Developmental Handicaps on Alternate Forms of the Peabody Picture Vocabulary Test
 
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Article Information
Reports   |   August 01, 1986
Performance of Adults with Developmental Handicaps on Alternate Forms of the Peabody Picture Vocabulary Test
Journal of Speech and Hearing Disorders, August 1986, Vol. 51, 259-263. doi:10.1044/jshd.5103.259
History: Received July 16, 1985 , Accepted March 25, 1986
 
Journal of Speech and Hearing Disorders, August 1986, Vol. 51, 259-263. doi:10.1044/jshd.5103.259
History: Received July 16, 1985; Accepted March 25, 1986

A total of 154 adults with developmental handicaps involved in a comprehensive community-based habilitation program were tested on alternate forms of the PPVT and PPVT—Revised to determine intertest reliabilities. A comparison of response profiles indicated that there was a significant degree of correspondence in general performance using alternate forms (p < .0001). This correspondence was maintained regardless of whether overall raw score or mental age equivalents were used. However, a comparison of performance on individual test items that were identical on alternate forms showed less consistent results. Particular aspects of the administration and structure of the PPVT/PPVT—R and response characteristics of individuals with developmental handicaps are suggested as being important factors in test administration and interpretation with this population.

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