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J Appl Dev Psychol. 2014 Jul;35(4):294-303.

Capturing Age-group Differences and Developmental Change with the BASC Parent Rating Scales.

Author information

1
Pace University, New York, NY, USA ; Yale University, New Haven, CT, USA.
2
Yale University, New Haven, CT, USA.
3
Yale University, New Haven, CT, USA ; Columbia University, New York, NY, USA.
4
Yale University, New Haven, CT, USA ; Columbia University, New York, NY, USA ; Moscow State University, Moscow, Russia.

Abstract

Estimation of age-group differences and intra-individual change across distinct developmental periods is often challenged by the use of age-appropriate (but non-parallel) measures. We present a short version of the Behavior Assessment System (Reynolds & Kamphaus, 1998), Parent Rating Scales for Children (PRS-C) and Adolescents (PRS-A), which uses only their common-items to derive estimates of the initial constructs optimized for developmental studies. Measurement invariance of a three-factor model (Externalizing, Internalizing, Adaptive Skills) was tested across age-groups (161 mothers using PRS-C; 200 mothers using PRS-A) and over time (115 mothers using PRS-C at baseline and PRS-A five years later) with the original versus short PRS. Results indicated that the short PRS holds a sufficient level of invariance for a robust estimation of age-group differences and intra-individual change, as compared to the original PRS, which held only weak invariance leading to flawed developmental inferences. Importance of test-content parallelism for developmental studies is discussed.

KEYWORDS:

BASC; developmental change; measurement invariance; parent rating scale; scale parallelism

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