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- Title
Research to Establish the Validity, Reliability, and Clinical Utility of a Comprehensive Language Assessment of Mandarin.
- Authors
Liu, Xueman Lucy; de Villiers, Jill; Chunyan Ning; Rolfhus, Eric; Hutchings, Teresa; Lee, Wendy; Jiang, Fan; Yi Wen Zhang
- Abstract
Purpose: With no existing gold standard for comparison, challenges arise for establishing the validity of a new standardized Mandarin language assessment normed in mainland China. Method: A new assessment, Diagnostic Receptive and Expressive Assessment of Mandarin (DREAM), was normed with a stratified sample of 969 children ages 2;6 (years; months) to 7;11 in multiple urban and nonurban regions in northern and southern China. In this study of 230 children, the sensitivity and specificity of DREAM were examined against an a priori judgment of disorders. External validity was assessed using 2 indices of language production for different age groups. Results: External validity was assessed against spontaneous language indices (correlation range: r = .6-.7; allps < .01) and narrative indices (overall: r = .45, p < .01). Sensitivity (.73) and specificity (.82) of DREAM are moderate to good using a priori judgment as the standard. The values improved to .95 and .82 when spontaneous language and narratives were added to a priori judgment to define typicality. Divergent validity was moderate with nonlinguistic indices. Conclusion: DREAM holds promise as a diagnostic test of Mandarin language impairment for children aged 2;6 to7;11.
- Subjects
CHINA; MANDARIN dialects -- Study &; teaching; TEST validity; TEST reliability; LANGUAGE ability testing; CHILDREN; LANGUAGE acquisition testing; EDUCATION; LANGUAGE &; languages; LANGUAGE acquisition; RESEARCH methodology evaluation
- Publication
Journal of Speech, Language & Hearing Research, 2017, Vol 60, Issue 3, p592
- ISSN
1092-4388
- Publication type
Article
- DOI
10.1044/2016_JSLHR-L-15-0334