Purpose: In order to support evidence-based practice, this study served to evaluate the diagnostic accuracy, convergent validity, and divergent validity of the Structured Photographic Expressive Language Test-Preschool: Second Edition (SPELT-P2; J. Dawson, J. A. Eyer, J. Fonkalsrud, 2005) in order to determine whether it can be used as a valid…

Purpose: Two studies are presented providing evidence indicating the diagnostic and predictive validity of the American version of "The Renfrew Bus Story" (J. Cowley & C. Glasgow, 1994). Method: Thirty-two children with specific language impairment (SLI) and 32 children with typical language development participated in the first study to determine…

Purpose: The assumption that children with language impairment will receive low scores on standardized tests, and therefore that low scores will accurately identify these children, is examined through a review of data in the manuals of tests that are intended for use in identifying such children. Method: Data from 43 commercially available tests…

Purpose: This study examined the empirical evidence for using the Structured Photographic Expressive Language Test: Third Edition (SPELT-3; Dawson, Stout, & Eyer, 2003) to diagnose language impairment in preschool children. The SPELT-3 is a revision of the SPELT-II (Werner & Kresheck, 1983), which has been proven in the past to have high levels of…

This study compared four commonly used vocabulary tests to screen or identify preschool children for specific language impairment (SLI). Four- and five-year olds with (N=31) and without (N=31) SLI were compared on the tests. Despite moderate to strong inter-test correlations, no test was a strong identifier of SLI. (Author/DB)

A study of 20 preschool children with specific language impairments and 20 typical preschool children examined the extent to which norm-referenced tests can identify a language impairment and determine specific areas of deficit. Results indicate the norm-referenced tests gave high discriminate capacity but inconsistent item-level performance.…

This introduction to a clinical forum on children with speech, language, and hearing difficulties focuses on assessment validity. The paper emphasizes that assessment validity depends on the purpose for which the clinician employs the assessment and the inferences the clinician intends to draw, and that assessment interpretation involves degrees…

Twenty-one language tests that included norms for children ages 4 and 5 were reviewed for information on 10 psychometric criteria. Administration of the 4 tests meeting the most criteria to 20 preschool children with specific language impairments and 20 controls found that only 1 (the Structured Photographic Expressive Language Test) provided…

This reaction to Duchan (EC 607 918) warns against a strict dogmatic adherence to either a qualitative or quantitative research approach and argues that far more important than methodology per se are choice of research question and appropriateness of the methodology to the problem under investigation. Examples in speech-language pathology are…