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Fielding-Gebhardt, Heather; Bredin-Oja, Shelley L.; Warren, Steven F. – American Journal on Intellectual and Developmental Disabilities, 2021
The development of an expressive language score for people with autism based on the ADOS-2 was recently reported by Mazurek et al. (2019). The current study examined the construct validity of the ADOS-2 expressive language score (ELS) in a sample of adolescents with fragile X syndrome (n = 45, 10 girls), a neurodevelopmental disorder with high…
Descriptors: Autism, Pervasive Developmental Disorders, Expressive Language, Genetic Disorders
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Conners, Frances A.; Tungate, Andrew S.; Abbeduto, Leonard; Merrill, Edward C.; Faught, Gayle G. – American Journal on Intellectual and Developmental Disabilities, 2018
Forty-two adolescents with Down syndrome (DS) ages 10 to 21 years completed a battery of language and phonological memory measures twice, 2 years apart. Individual differences were highly stable across two years. Receptive vocabulary scores improved, there was no change in receptive or expressive grammar scores, and nonword repetition scores…
Descriptors: Adolescents, Down Syndrome, Language Acquisition, Language Skill Attrition