Measures Inherent to Treatments in Program Effectiveness Reviews

Autor/inn/en	Slavin, Robert; Madden, Nancy A.
Titel	Measures Inherent to Treatments in Program Effectiveness Reviews
Quelle	In: Journal of Research on Educational Effectiveness, 4 (2011) 4, S.370-380 (11 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	Weitere Informationen
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	1934-5747
DOI	10.1080/19345747.2011.558986
Schlagwörter	Evidence; Experimental Groups; Control Groups; Program Effectiveness; Effect Size; Intervention; Educational Change; Comparative Analysis; Outcomes of Treatment; Experiments + Suchen Sie Ihr Suchwort? Evidenz; Bildungsreform; Erprobung
Abstract	Program effectiveness reviews in education seek to provide educators with scientifically valid and useful summaries of evidence on achievement effects of various interventions. Different reviewers have different policies on measures of content taught in the experimental group but not the control group, called here "treatment-inherent" measures. These are contrasted with "treatment-independent" measures of content emphasized equally in experimental and control groups. The What Works Clearinghouse (WWC) averages effect sizes from such measures with those from treatment-independent measures, while the Best Evidence Encyclopedia excludes treatment-inherent measures. This article contrasts effect sizes from treatment-inherent and treatment-independent measures in WWC reading and math reviews to explore the degree to which these measures produce different estimates. In all comparisons, treatment-inherent measures produce much larger positive effect sizes than treatment-independent measures. Based on these findings, it is suggested that program effectiveness reviews exclude treatment-inherent measures, or at least report them separately. (Contains 2 tables.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10