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Belisle, Jordan; Dixon, Mark R.; Munoz, Bridget E.; Fricke-Steuber, Kate – Journal of Behavioral Education, 2022
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…
Descriptors: Test Validity, Correlation, Psychometrics, Verbal Ability
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Jessica Singer-Dudek; Lin Du; Ashley Greer; Andrew Dakopolos; Laudan Jahromi; Marla Brassard; R. Douglas Greer – Journal of Developmental and Physical Disabilities, 2023
The Early Learner Curriculum and Achievement Record (ELCAR, Greer et al., 2020) is a criterion-referenced curriculum and assessment of children's development of language and social repertoires from the earliest foundational observing responses to advanced verbal repertoires. The developmental cusps or stages identified in the ELCAR have been…
Descriptors: Autism Spectrum Disorders, Preschool Children, Child Development, Verbal Development