Is the Vineland-3 Comprehensive Interview Form a Multidimensional or Unidimensional Scale? Structural Analysis of Subdomain Scores Across Early Childhood to Adulthood

As the Vineland Scales are among the most relevant, well-developed, and popular measures of adaptive behavior available for use, this study evaluated the factor structure and dimensionality of the Vineland-3 Comprehensive Interview Form. Drawing data from 2,560 participants in the norming sample, ex...

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Bibliographic Details
Published in:Assessment (Odessa, Fla.) Fla.), 2021-10, Vol.28 (7), p.1848-1864
Main Authors: Farmer, Ryan L., Floyd, Randy G., McNicholas, Patrick J.
Format: Article
Language:English
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Summary:As the Vineland Scales are among the most relevant, well-developed, and popular measures of adaptive behavior available for use, this study evaluated the factor structure and dimensionality of the Vineland-3 Comprehensive Interview Form. Drawing data from 2,560 participants in the norming sample, exploratory and confirmatory factor analyses were completed across two independent samples from four age-groups ranging from preschool-age children to adults. Results from exploratory factor analysis revealed evidence for a unidimensional model across age-groups, but results from confirmatory factor analysis indicated that multidimensional models were better fitting than unidimensional models for each age-group. Discussion focuses on whether the Vineland-3 Comprehensive Interview Form is truly a unidimensional or multidimensional measure.
ISSN:1073-1911
1552-3489
DOI:10.1177/1073191120947804