TY - JOUR
T1 - The diagnostic accuracy and construct validity of the structured photographic expressive language test-preschool
T2 - Second edition
AU - Greenslade, Kathryn J.
AU - Plante, Elena
AU - Vance, Rebecca
PY - 2009/4
Y1 - 2009/4
N2 - 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.
AB - 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.
KW - Diagnostics
KW - Evidence-based practice
KW - Language
KW - Specific language impairment
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U2 - 10.1044/0161-1461(2008/07-0049)
DO - 10.1044/0161-1461(2008/07-0049)
M3 - Article
C2 - 18840676
AN - SCOPUS:66349137056
SN - 0161-1461
VL - 40
SP - 150
EP - 160
JO - Language, speech, and hearing services in schools
JF - Language, speech, and hearing services in schools
IS - 2
ER -