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dc.contributor.author Gierut, Judith A. en
dc.contributor.author Morrisette, Michele L. en
dc.contributor.author Dickinson, Stephanie en
dc.date.accessioned 2015-07-21T13:09:04Z en
dc.date.available 2015-07-21T13:09:04Z en
dc.date.issued 7/20/2015 en
dc.identifier.citation Gierut, J. A., Morrisette, M. L., & Dickinson, S. (In press). Effect size for single-subject design in phonological treatment. Journal of Speech, Language, and Hearing Research. en
dc.identifier.uri http://hdl.handle.net/2022/20307
dc.description.abstract Purpose: To document, validate, and corroborate effect size (ES) for single-subject design in treatment of children with functional phonological disorders; to evaluate potential child-specific contributing variables relative to ES; and to establish benchmarks for interpretation of ES for the population. Method: Data were extracted from the Developmental Phonologies Archive for 135 preschool children with phonological disorders who previously participated in single-subject experimental treatment studies. Standard Mean DifferenceAll with Correction for Continuity was computed to gauge the magnitude of generalization gain that accrued longitudinally from treatment for each child, with the data aggregated for purposes of statistical analyses. Results: ES ranged from 0.09 to 27.83 for the study population. ES was positively correlated with conventional measures of phonological learning and visual inspection of learning data based on procedures standard to single-subject design. ES was linked to children’s performance on diagnostic assessments of phonology, but not other demographic characteristics or related linguistic skills and nonlinguistic skills. Benchmarks for interpretation of ES were estimated as 1.4, 3.6, and 10.1 for small, medium, and large learning effects, respectively. Conclusion: Findings have utility for single-subject research and translation of research to evidence-based practice for children with phonological disorders. en
dc.description.sponsorship National Institutes of Health DC00433, RR7031K, DC00076, DC001694 (PI: Gierut) en
dc.language.iso en_US en
dc.relation.isversionof http://dx.doi.org/10.1044/2015_JSLHR-S-14-0299 en
dc.rights © 2015 American Speech-Language-Hearing Association (ASHA) en
dc.subject child phonology en
dc.subject clinical phonology en
dc.subject Learnability Project en
dc.subject phonological disorders in children en
dc.subject phonological treatment en
dc.subject phonology en
dc.subject language acquisition en
dc.title Effect size for single-subject design in phonological treatment en
dc.type Pre-print en
dc.altmetrics.display FALSE en


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