Title

The Convergent Validity of the PEAK-E-PA and Two Common Assessments of Language Development: The ABLLS-R and the TOLD 1:4

Abstract

The study evaluated the convergent validity of the PEAK-E-PA and two common assessments of language development used in educational and clinical settings: the ABLLS-R and the TOLD-I:4. The PEAK-E-PA provides a measure of a participant’s ability to derive arbitrary stimulus relations, and may therefore provide a more complex analysis of language functioning than traditional behavior analytic language assessments. The results of the present study support a strong, significant relationship between the PEAK-E-PA and the ABLLS-R (r = 0.73, p < 0.01), but the obtained coefficient falls within the lower range of prior psychometric evaluations of behavioral language assessments. The results suggest a stronger relationship between the PEAK-E-PA the TOLD-I:4 (r = 0.94, p < 0.01), supporting the use of the PEAK-E-PA with individuals with autism who have progressed beyond the elementary verbal operant skills assessed for in traditional behavioral assessments.

Department(s)

Psychology

Document Type

Article

DOI

https://doi.org/10.1007/s10864-020-09426-x

Keywords

Assessment, Education, PEAK, Stimulus equivalence

Publication Date

1-1-2021

Journal Title

Journal of Behavioral Education

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