title: Early Predictors of Growth in Diversity of Key Consonants Used in Communication in Initially Preverbal Children with Autism Spectrum Disorder.
abstract: Diversity of key consonants used in communication (DKCC) is a value-added predictor of expressive language growth in initially preverbal children with autism spectrum disorder (ASD). Studying the predictors of DKCC growth in young children with ASD might inform treatment of this under-studied aspect of prelinguistic development. Eighty-seven initially preverbal preschoolers with ASD and their parents were observed at five measurement periods. In this longitudinal correlational investigation, we found that child intentional communication acts and parent linguistic responses to child leads predicted DKCC growth, after controlling for two other predictors and two background variables. As predicted, receptive vocabulary mediated the association between the value-added predictors and endpoint DKCC.
authors.affiliation: Department of Hearing and Speech Sciences, Vanderbilt University, Nashville, TN, USA.
authors.forename: Tiffany
authors.initials: T
authors.lastname: Woynaroski
authors.affiliation: Speech and Hearing Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
authors.forename: Linda
authors.initials: L
authors.lastname: Watson
authors.affiliation: Vanderbilt Kennedy Center, Vanderbilt University, Nashville, TN, USA.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Gardner
authors.affiliation: Pediatrics, Psychiatry, & Psychology, Vanderbilt University, Nashville, TN, USA.
authors.forename: Cassandra R
authors.initials: CR
authors.lastname: Newsom
authors.affiliation: Special Education, Ankara University, Ankara, Turkey.
authors.forename: Bahar
authors.initials: B
authors.lastname: Keceli-Kaysili
authors.affiliation: Special Education, Vanderbilt University, Nashville, TN, USA. Paul.Yoder@vanderbilt.edu.
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Yoder
mesh_terms: D000067877:Autism Spectrum Disorder / Q000175:diagnosis* / Q000523:psychology*; D002663:Child Language; D002675:Child, Preschool; D003142:Communication; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D008037:Linguistics / Q000379:methods*; D008137:Longitudinal Studies; D008297:Male; D010290:Parents / Q000523:psychology*; D011237:Predictive Value of Tests; D014825:Vocabulary
keywords: Autism; Consonant inventory; Intentional communication; Parent linguistic responses; Predictors; Receptive vocabulary; Vocal communication