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- Title
Percent Grammatical Utterances Between 4 and 9 Years of Age for the Edmonton Narrative Norms Instrument: Reference Data and Psychometric Properties.
- Authors
Ling-Yu Guo; Eisenberg, Sarita; Schneider, Phyllis; Spencer, Linda
- Abstract
Purpose: The purpose of this article was to provide the reference data and evaluate psychometric properties for the percent grammatical utterances (PGU; Eisenberg & Guo, 2013) in children between 4 and 9 years of age from the database of the Edmonton Narrative Norms Instrument (ENNI; Schneider, Dubé, & Hayward, 2005). Method: Participants were 377 children who were between 4 and 9 years of age, including 300 children with typical language (TL) and 77 children with language impairment (LI). Narrative samples were collected using the ENNI protocol (i.e., a story generation task). PGU was computed from the samples. Split-half reliability, concurrent criterion validity, and diagnostic accuracy for PGU were further evaluated. Results: PGU increased significantly in children between 4 and 9 years of age in both the TL and LI groups. In addition, the correlation coefficients for the split-half reliability and concurrent criterion validity of PGU were all large (rs ≥ .557, ps < .001). The diagnostic accuracy of PGU was also good or acceptable from ages 4 to 9 years. Conclusions: With the attested psychometric properties, PGU computed from the ENNI could be used as an assessment tool for identifying children with LI between 4 and 9 years of age. The reference data of PGU could also be used for monitoring treatment progress.
- Subjects
CANADA; LANGUAGE disorder diagnosis; AGE distribution; ANALYSIS of variance; COMMUNICATION; COMPUTER software; CONFIDENCE intervals; STATISTICAL correlation; COMPARATIVE grammar; LANGUAGE acquisition; RESEARCH methodology; PSYCHOMETRICS; REFERENCE values; RELIABILITY (Personality trait); RESEARCH evaluation; RESEARCH funding; SPEECH evaluation; STATISTICS; STORYTELLING; DATA analysis; RECEIVER operating characteristic curves; RESEARCH methodology evaluation; DESCRIPTIVE statistics
- Publication
American Journal of Speech-Language Pathology, 2019, Vol 28, Issue 4, p1448
- ISSN
1058-0360
- Publication type
Article
- DOI
10.1044/2019_AJSLP-18-0228