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ERIC Number: EJ1228443
Record Type: Journal
Publication Date: 2019-Sep
Pages: 12
Abstractor: As Provided
ISSN: ISSN-1944-7515
Brief Report: Calculation and Convergent and Divergent Validity of a New ADOS-2 Expressive Language Score
Mazurek, Micah O.; Baker-Ericzén, Mary; Kanne, Stephen M.
American Journal on Intellectual and Developmental Disabilities, v124 n5 p438-449 Sep 2019
Despite the importance of expressive language for individuals with autism spectrum disorder (ASD), expressive language assessments are not consistently included in ASD research and many studies do not adequately describe participants' verbal abilities. A valid and efficient measure of expressive language would facilitate consistent reporting across ASD research studies and provide data for additional analyses. The current study developed a new Autism Diagnostic Observation Schedule (ADOS-2) expressive language score and examined convergent and divergent validity in a large, well-defined sample of children with ASD. This score was highly correlated with other measures of expressive language (including parent-report, direct assessment, and clinician ratings) and less strongly correlated with measures of receptive language and nonverbal cognitive ability, providing good evidence of convergent and divergent validity.
American Association on Intellectual and Developmental Disabilities. P.O. Box 1897, Lawrence, KS 66044-1897. Tel: 785-843-1235; Fax: 785-843-1274; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: National Institute of Mental Health (DHHS/NIH)
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Autism Diagnostic Observation Schedule
Grant or Contract Numbers: R01MH097726