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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| Title: | Convergent and Discriminant Validity of the Verbal Behavior Milestones Assessment and Placement Program (VB-MAPP) and the Vineland Adaptive Behavior Scales (VABS) |
|---|---|
| Language: | English |
| Authors: | Amin D. Lotfizadeh (ORCID |
| Source: | Journal of Autism and Developmental Disorders. 2025 55(3):803-811. |
| Availability: | Springer. Available from: Springer Nature. One New York Plaza, Suite 4600, New York, NY 10004. Tel: 800-777-4643; Tel: 212-460-1500; Fax: 212-460-1700; e-mail: customerservice@springernature.com; Web site: https://link.springer.com/ |
| Peer Reviewed: | Y |
| Page Count: | 9 |
| Publication Date: | 2025 |
| Document Type: | Journal Articles Reports - Research |
| Descriptors: | Adjustment (to Environment), Behavior Rating Scales, Autism Spectrum Disorders, Test Validity, Language Skills, Interpersonal Competence, Daily Living Skills, Correlation, Scores, Comparative Analysis, Verbal Development, Psychometrics |
| Assessment and Survey Identifiers: | Vineland Adaptive Behavior Scales |
| DOI: | 10.1007/s10803-024-06241-5 |
| ISSN: | 0162-3257 1573-3432 |
| Abstract: | 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 about its convergent validity, we calculated correlations between scores earned by 235 children with autism on the VB-MAPP and the Vineland Adaptive Behavior Scale (VABS), a commonly used assessment with good reliability and validity. We obtained moderate or strong positive correlations between the VB-MAPP Milestones score and VABS Communication, Socialization, and Daily Living Skills subdomains. There was also a strong positive correlation between the VB-MAPP Milestones score and VABS overall raw score. These findings suggest that the VB-MAPP Milestones Assessment measures aspects of social and communicative behavior comparable to those indexed by these VABS subdomains which, like prior findings, supports the use of the Milestones Assessment. No significant relationship was observed between the VB-MAPP Barriers score and the VABS Internalizing, Externalizing, or overall Maladaptive Behavior scores. These findings, like prior findings, question the value of the VB-MAPP's Barriers Assessment as a measure of maladaptive behavior. |
| Abstractor: | As Provided |
| Entry Date: | 2025 |
| Accession Number: | EJ1460745 |
| Database: | ERIC |
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| Abstract: | 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 about its convergent validity, we calculated correlations between scores earned by 235 children with autism on the VB-MAPP and the Vineland Adaptive Behavior Scale (VABS), a commonly used assessment with good reliability and validity. We obtained moderate or strong positive correlations between the VB-MAPP Milestones score and VABS Communication, Socialization, and Daily Living Skills subdomains. There was also a strong positive correlation between the VB-MAPP Milestones score and VABS overall raw score. These findings suggest that the VB-MAPP Milestones Assessment measures aspects of social and communicative behavior comparable to those indexed by these VABS subdomains which, like prior findings, supports the use of the Milestones Assessment. No significant relationship was observed between the VB-MAPP Barriers score and the VABS Internalizing, Externalizing, or overall Maladaptive Behavior scores. These findings, like prior findings, question the value of the VB-MAPP's Barriers Assessment as a measure of maladaptive behavior. |
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| ISSN: | 0162-3257 1573-3432 |
| DOI: | 10.1007/s10803-024-06241-5 |
