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Direct linkPalechka, Gail; MacDonald, Rebecca – Education and Treatment of Children, 2010
We compared the effects of a commercially-available children's video relative to an instructor-created video model on the acquisition of play skills with three children diagnosed with an autism spectrum disorder. Each participant was exposed to one commercially-available video model for one play scenario and one instructor-created video for a…
Descriptors: Play, Autism, Skill Development, Pervasive Developmental Disorders
Webb, Mi-young Lee; Cohen, Allan S.; Schwanenflugel, Paula J. – Educational and Psychological Measurement, 2008
This study investigated the use of latent class analysis for the detection of differences in item functioning on the Peabody Picture Vocabulary Test-Third Edition (PPVT-III). A two-class solution for a latent class model appeared to be defined in part by ability because Class 1 was lower in ability than Class 2 on both the PPVT-III and the…
Descriptors: Item Response Theory, Test Items, Test Format, Cognitive Ability
Peer reviewedMiller, Linda T.; Lee, Christopher J. – Psychological Assessment, 1993
A historicodevelopmental model of acquisition order of words was applied to 175 words comprising the Peabody Picture Vocabulary Test--Revised. A structural equation model demonstrates that the combination of date of entry into English, word length, polysemy, and frequency of use account for a substantial proportion of variance of acquisition…
Descriptors: Cognitive Tests, Construct Validity, Structural Equation Models, Vocabulary Development
