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Autor/inn/enShapiro, Anna; Weiland, Christina
TitelWhat Is in a Definition? The How and When of Special Education Subgroup Analysis in Preschool Evaluations
QuelleIn: Educational Evaluation and Policy Analysis, 41 (2019) 2, S.145-163 (19 Seiten)Infoseite zur Zeitschrift
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ZusatzinformationORCID (Shapiro, Anna)
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Spracheenglisch
Dokumenttypgedruckt; online; Zeitschriftenaufsatz
ISSN0162-3737
DOI10.3102/0162373718820307
SchlagwörterDefinitions; Special Education; Preschools; Preschool Children; Special Needs Students; Experimental Groups; Control Groups; Federal Programs; Early Childhood Education; Early Intervention; School Readiness; Low Income Groups; Disadvantaged Youth; Program Evaluation; Intelligence Tests; Verbal Ability; Vocabulary; Child Behavior; Check Lists; Achievement Tests; Peabody Picture Vocabulary Test; Child Behavior Checklist; Woodcock Johnson Tests of Achievement
AbstractThere are unique challenges to estimating causal effects of preschool for students with special needs that have not received attention in the literature. We revisit the Head Start Impact Study (HSIS) to illustrate that when and how special needs is defined has implications for the internal validity of and interpretation of special needs subgroup impact estimates. We find that the treatment group in the HSIS was three percentage points more likely to be classified as special education (SD = 0.11, p < 0.001) at baseline, likely biasing the impact estimates for this subgroup. We also find that the estimated intent-to-treat effects of Head Start on cognitive and socioemotional measures are sensitive to subgroup definition. (As Provided).
AnmerkungenSAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com
Erfasst vonERIC (Education Resources Information Center), Washington, DC
Update2020/1/01
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