American Journal of Speech-Language Pathology Vol.19 225-237 August 2010. doi:10.1044/1058-0360(2010/09-0058)
© American Speech-Language-Hearing Association
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Research Article

Measurement Properties and Classification Accuracy of Two Spanish Parent Surveys of Language Development for Preschool-Age Children

Mark Guiberson
University of Northern Colorado, Greeley

Barbara L. Rodríguez
The University of New Mexico, Albuquerque

Contact author: Mark Guiberson, University of Northern Colorado—Audiology and Speech Language Sciences, Gunter Hall, Campus Box 140, Greeley, CO 80639. E-mail: mark.guiberson{at}unco.edu.

Purpose: To describe the concurrent validity and classification accuracy of 2 Spanish parent surveys of language development, the Spanish Ages and Stages Questionnaire (ASQ; Squires, Potter, & Bricker, 1999) and the Pilot Inventario–III (Pilot INV–III; Guiberson, 2008a).

Method: Forty-eight Spanish-speaking parents of preschool-age children participated. Twenty-two children had expressive language delays, and 26 had typical language development. The parents completed the Spanish ASQ and the Pilot INV–III at home, and the Preschool Language Scale, Fourth Edition: Spanish Edition (PLS–4 Spanish; Zimmerman, Steiner, & Pond, 2002) was administered to the children at preschool centers.

Results: The Spanish ASQ and Pilot INV–III were significantly correlated with the PLS–4 Spanish, establishing concurrent validity. On both surveys, children with expressive language delays scored significantly lower than children with typical development. The Spanish ASQ demonstrated unacceptably low sensitivity (59%) and good specificity (92%), while the Pilot INV–III demonstrated fair sensitivity (82%) and specificity (81%). Likelihood ratios and posttest probability revealed that the Pilot INV–III may assist in detection of expressive language delays, but viewed alone it is insufficient to make an unconditional screening determination.

Conclusions: Results suggest that Spanish parent surveys hold promise for screening language delay in Spanish-speaking preschool children; however, further refinement of these tools is needed.

Key Words: parent survey, preschool, Spanish, classification accuracy


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M. Guiberson, B. L. Rodriguez, and P. S. Dale
Classification Accuracy of Brief Parent Report Measures of Language Development in Spanish-Speaking Toddlers
Lang Speech Hear Serv Sch, October 1, 2011; 42(4): 536 - 549.
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