The Diagnostic Accuracy and Construct Validity of the Structured Photographic Expressive Language Test—Preschool: Second Edition.

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Bibliographic Details
Title:	The Diagnostic Accuracy and Construct Validity of the Structured Photographic Expressive Language Test—Preschool: Second Edition.
Authors:	Greenslade, Kathryn J.¹, Plante, Elena¹ eplante@email.arizona.edu, Vance, Rebecca¹
Source:	Language, Speech & Hearing Services in Schools. Apr2009, Vol. 40 Issue 2, p150-160. 11p. 7 Charts, 2 Graphs.
Subject Terms:	Language exams, Language testing of children, Preschool children, Ability testing, Preschool education, Early childhood education, *School children, Multivariate analysis, Language disorders in children
Abstract:	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 measure for identifying language impairment in preschoolers. Method: The SPELT-P2 was administered to 54 children with typically developing language and 42 children with specific language impairment. Results: A discriminant analysis revealed good sensitivity (90.6%), good specificity (100%), and good positive and negative likelihood ratios, with a standard score cutoff point of 87 used to determine group membership. Analyses of convergent and divergent validity also supported use of the SPELT-P2 for identifying language impairment in preschoolers. Implications: The empirical evidence supports use of the SPELT-P2 as a valid measure for correctly identifying the presence or absence of language impairment in 4- and 5-year-old preschool children. [ABSTRACT FROM AUTHOR]
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Database:	Education Research Complete

Description
Abstract:	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 measure for identifying language impairment in preschoolers. Method: The SPELT-P2 was administered to 54 children with typically developing language and 42 children with specific language impairment. Results: A discriminant analysis revealed good sensitivity (90.6%), good specificity (100%), and good positive and negative likelihood ratios, with a standard score cutoff point of 87 used to determine group membership. Analyses of convergent and divergent validity also supported use of the SPELT-P2 for identifying language impairment in preschoolers. Implications: The empirical evidence supports use of the SPELT-P2 as a valid measure for correctly identifying the presence or absence of language impairment in 4- and 5-year-old preschool children. [ABSTRACT FROM AUTHOR]
ISSN:	01611461
DOI:	10.1044/0161-1461(2008/07-0049)