Table E. Effect sizes for student-level measures: Pre-kindergarten

Effects of Preschool Curriculum Programs on School Readiness: Report from the Preschool Curriculum Evaluation Research Initiative Executive Summary

NCER 2008-2009
July 2008

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Table E. Effect sizes for student-level measures: Pre-kindergarten

	Curricula
Outcome/Measures	BB		CC (V)	CC (UNC)	CC with Ldrs	Curiosity Corner	DD	LB	ELLM	LFC	DLM with OC		LE	Pre-K Math		PA	PC		RSL
Reading
TERA	0.39	*	0.02	-0.08	-0.30	0.10	0.06	0.02	0.15	0.16	0.68	***	0.17	0.13		0.14	0.00		0.08
WJ Letter Word Identification	0.35		0.16	-0.08	-0.16	0.09	0.10	0.10	-0.05	0.11	0.51	**	0.30	-0.01		0.42	-0.05		0.01
WJ Spelling	0.18		0.19	-0.18	0.30	0.04	0.06	0.17	0.11	0.25	0.46	**	0.05	0.20		27.00	-0.15		0.20

Phonological awareness
Pre-CTOPPP	-0.07		0.10	0.02	-0.16	0.18	0.18	-0.13	0.18	0.20	0.32	*	0.14	0.04		0.05	0.10		-0.09

Language
PPVT	0.13		0.23	0.08	-0.38	-0.01	0.15	-0.03	0.17	0.02	0.40	*	0.17	0.17		0.16	0.03		0.15
TOLD	0.09		0.07	-0.16	-0.22	-0.08	0.17	0.08	0.15	0.01	0.40	**	-0.04	0.17		0.15	-0.05		-0.11

Mathematics
WJ Applied Problems	0.16		0.17	0.20	-0.14	0.10	0.01	-0.10	0.10	0.20	0.36	**	0.05	0.22		0.07	0.06		0.04
CMA-A Mathematics Composite	0.14		0.10	-0.10	0.18	0.01	0.13	0.15	0.01	0.08	0.17		-0.02	0.44	**	0.18	-0.11		-0.24	*
Shape Composite	-0.03		0.12	0.19	0.02	0.16	-0.13	21.00	-0.14	0.08	0.24		-0.01	0.96	***	0.27	-0.42	**	0.08

Behavior
SSRS Social Skills	-0.27		0.03	0.05	-0.25	-0.06	-0.18	-0.27	-0.06	-0.42	-0.11		-0.06	0.22		0.04	0.22		-0.05
SSRS Problem Behavior	0.23		0.07	-0.16	-0.01	0.43	-0.14	-0.06	-0.24	0.37	0.11		-0.31	-0.09		0.50	-0.08		-0.03
PLBS	0.04		0.14	0.07	-0.08	-0.25	-0.18	-0.44	0.14	-0.27	-0.16		17.00	0.09		-0.31	0.00		0.07
* p < .05 ; p < .01; * p < .001
NOTE: Refer to the glossary for abbreviations of the measures. Abbreviations for the curricula are: BB: Bright Beginnings CC (V): Creative Curriculum (Vanderbilt University) CC (UNC): Creative Curriculum (University of North Carolina at Charlotte) CC with Ldrs: Creative Curriculum with Ladders to Literacy DD: Doors to Discovery LB: Let’s Begin with the Letter People ELLM: Early Literacy and Learning ModelLFC: Language-Focused Curriculum DLM with OC: DLM Early Childhood Express supplemented with Open Court Reading Pre-K LE: Literacy Express Pre-K Math: Pre-K Mathematics supplemented with DLM Early Childhood Express Math software PA: Project Approach PC: Project ConstructRSL: Ready, Set, Leap! SOURCE: The Preschool Curriculum Evaluation Research (PCER) Study.

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National Center for Education Research

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