Table B. Units of random assignment for evaluation of each curriculum

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

NCER 2008-2009
July 2008

Table B. Units of random assignment for evaluation of each curriculum

Research team	Curricula	Treatment sample	Control sample	Students
Vanderbilt University	Bright Beginnings	7 classrooms	7 classrooms	T: 103 C: 105 T: 101
Vanderbilt University	Creative Curriculum	7 classrooms	7 classrooms	T: 103 C: 105 T: 101
University of North Carolina at Charlotte	Creative Curriculum	9 classrooms	9 classrooms	T: 97 C: 97
University of New Hampshire	Creative Curriculum with Ladders to Literacy	7 classrooms	7 classrooms	T: 62 C: 61
Success for All Foundation	Curiosity Corner	10 Pre-K programs	8 Pre-K programs	T: 105 C: 110
University of Texas Health Science Center at Houston	Doors to Discovery	14 classrooms	15 classrooms	T: 101 C: 96 T: 100
University of Texas Health Science Center at Houston	Let’s Begin with the Letter People	15 classrooms	15 classrooms	T: 101 C: 96 T: 100
University of North Florida	Early Literacy and Learning Model	14 classrooms¹	14 classrooms¹	T: 137 C: 107
University of Virginia	Language-Focused Curriculum	7 classrooms	7 classrooms	T: 97 C: 98
Florida State University	DLM Early Childhood Express with Open Court Reading Pre-K	5 Pre-K programs	6 Pre-K programs	T: 101 C: 97 T: 99
Florida State University	Literacy Express	6 Pre-K programs	6 Pre-K programs	T: 101 C: 97 T: 99
UC-Berkeley and University at Buffalo, State University of New York	Pre-K Mathematics with DLM Early Childhood Express Math software	20 classrooms	20 classrooms	T: 159 C: 157
Purdue University and University of WI-Milwaukee	Project Approach	7 classrooms	6 classrooms	T: 114 C: 90
University of Missouri-Columbia	Project Construct	10 Pre-K programs¹	11 Pre-K programs¹	T: 123 C: 108
University of California, Berkeley	Ready, Set, Leap!	18 classrooms	21 classrooms	T: 149 C: 137
¹ After one program or classroom attrited. NOTE: T: Treatment Group C: Control Group Three research teams (Vanderbilt University, University of Texas Health Science Center at Houston, and Florida State University) have two treatment groups and a shared control group. When reading the “Students” column, the first “T” refers to the first curriculum in the same row, while the second “T” refers to the second curriculum in the same row. The “C” refers to the shared control group. For example, Vanderbilt University compared two curricula: Bright Beginnings (103 students) and Creative Curriculum (101 students) to a control curriculum (105 students). SOURCE: The Preschool Curriculum Evaluation Research (PCER) Study.