A Comparison of Natural Language Samples Collected From Minimally and Low-Verbal Children and Adolescents With Autism by Parents and Examiners

Author:

Barokova Mihaela D.1ORCID,Hassan Sommer1,Lee Collin1,Xu Mengyuan1,Tager-Flusberg Helen1ORCID

Affiliation:

1. Center for Autism Research Excellence, Department of Psychological and Brain Sciences, Boston University, MA

Abstract

Purpose We aimed to compare the speech of parents and examiners as they elicited language samples from minimally and low-verbal (MLV) children and adolescents with autism spectrum disorder (ASD), while following the same semi-structured elicitation protocol, Eliciting Language Samples for Analysis–Adolescents (ELSA-A). We also compared the speech elicited from the MLV children/adolescents by their parents at home and by trained examiners in the lab and assessed the feasibility of parents collecting language samples at home. Method Thirty-three (five female, 28 male) MLV children and adolescents with ASD between the ages of 6;6 and 19;7 (years;months) participated. All participants were administered standardized assessments, and a trained examiner collected an ELSA-A language sample from them in the lab. The parents of 22 of the children/adolescents collected an ELSA-A sample at home. All language samples were transcribed following standard procedures, and measures of expressive language were extracted to assess the quantity of speech, its syntactic complexity, and lexical diversity. At the end of the study, parents filled out a feedback survey about their experiences collecting ELSA-A. Results On average, parents produced twice as much speech as trained examiners during ELSA-A. However, their speech did not differ in syntactic complexity or lexical diversity. When with their parents, the MLV children/adolescents also produced twice as much speech than with trained examiners. In addition, their samples were more lexically diverse. Overall, parents elicited longer language samples but administered fewer of the ELSA-A activities. Nevertheless, the majority of parents rated the experience of collecting language samples at home favorably. Conclusions When parents collect language samples at home, their older MLV children/adolescents with ASD produce more speech and engage in more back-and-forth verbal interactions than when with trained examiners. Because parent-elicited language samples allow for a richer assessment of children's expressive language abilities, future studies should focus on identifying ways to encourage parents to collect data at home.

Publisher

American Speech Language Hearing Association

Subject

Speech and Hearing,Linguistics and Language,Language and Linguistics

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