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Convergent and Discriminant Validity of the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP) and the Vineland Adaptive Behavior Scales (VABS)
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Amin D. Lotfizadeh; Brendan Gard; Cynthia Rico; Alan Poling; Kristen R. Choi – Journal of Autism and Developmental Disorders, 2025
Behavior analysts frequently use the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP) to assess the language and social skills of children with autism in everyday practice and in research. Despite the widespread use of the VB-MAPP, its psychometric characteristics have not been extensively investigated. To provide information…
Descriptors: Adjustment (to Environment), Behavior Rating Scales, Autism Spectrum Disorders, Test Validity
Validity of Vocal Communication and Vocal Complexity in Young Children with Autism Spectrum Disorder
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McDaniel, Jena; Yoder, Paul; Estes, Annette; Rogers, Sally J. – Journal of Autism and Developmental Disorders, 2020
To identify valid measures of vocal development in young children with autism spectrum disorder in the early stages of language learning, we evaluated the convergent validity, divergent validity, and sensitivity to change (across 12 months) of two measures of vocal communication and two measures of vocal complexity through conventional coding of…
Descriptors: Validity, Measures (Individuals), Verbal Development, Interpersonal Communication
A Retrospective Video Analysis of Canonical Babbling and Volubility in Infants with Fragile X Syndrome at 9-12 Months of Age
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Belardi, Katie; Watson, Linda R.; Faldowski, Richard A.; Hazlett, Heather; Crais, Elizabeth; Baranek, Grace T.; McComish, Cara; Patten, Elena; Oller, D. Kimbrough – Journal of Autism and Developmental Disorders, 2017
An infant's vocal capacity develops significantly during the first year of life. Research suggests early measures of pre-speech development, such as canonical babbling and volubility, can differentiate typical versus disordered development. This study offers a new contribution by comparing early vocal development in 10 infants with Fragile X…
Descriptors: Infants, Child Language, Genetic Disorders, Language Impairments