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

NCER 2008-2009
July 2008


Table G.  Effect sizes for classroom-level measures: Pre-kindergarten
 

Curricula
Outcome/Measure BB   CC (V) CC (UNC)   CC with Ldrs   Curiosity Corner   DD   LB   ELLM LFC DLM with OC   LE   Pre-K Math PA PC RSL
Global classroom quality                                               
ECERS-R  0.80   0.45 1.66 * -0.71   -0.48   0.39   0.82 * -0.48 0.34   1.29 * 0.05 -0.19 0.54 0.16
                                               
Teacher-child interaction                                               
Arnett Detachment  0.19   -0.16 -1.68 * 0.51   -0.41   -0.07   -0.07   -0.41 -0.06   -1.09   -0.37 0.57 0.12 0.19
Arnett Harshness  0.12   -0.12 -0.70   -0.26   0.14   -0.38   -0.95 * -0.40 -0.70   -0.84   0.18 0.86 -0.13 0.30
Arnett Permissiveness  0.16   0.51 -1.01   1.02   -0.98   0.13   -0.05   -0.24 0.05   0.51   -0.45 -0.43 -0.02 -0.24
Arnett Positive Interactions  0.41   -0.15 1.65 ** 0.03   0.02   0.38   0.48   0.29 0.43   0.56   0.16 -0.99 0.46 0.04
                                               
Language instruction                                               
TBRS Book Reading  1.03   -0.47 0.28   -0.32   2.06 ** 1.18 * 0.63   0.32 -0.79 0.01   0.49   0.07 -0.76 0.81 -0.18
TBRS Oral Language  0.39   -0.07 1.80 ** -0.50   0.37   0.59   0.44   0.14 0.87 -0.33   0.25   0.19 -0.42 0.52 -0.24
                                               
Phonological instruction                                               
TBRS Phonological Awareness  1.53 * 1.97 -0.10   -0.19   0.44   0.58   0.66   0.53 0.92 1.41 * 1.26 * 0.38 -1.19 0.01 0.22
                                               
Literacy instruction                                               
TBRS Print and Letter Knowledge  1.51 * 1.81 1.02   0.75   -0.99   0.90 * 0.99 * 0.41 0.33 0.91   1.07   0.07 0.34 0.34 -0.02
TBRS Written Expression  1.61 * 1.99 1.73 ** 1.13 * -0.54   0.62   0.60   -0.22 0.99 -0.58   -0.03   -0.12 0.62 0.43 0.10
                                               
Mathematics instruction                                               
TBRS Math Concepts  0.98   1.48 0.75   0.44   -0.33   0.37   0.24   -0.92 0.20 -0.46   -0.12   0.57 -0.64 0.53 -0.10
— Not available.
* p < .05; ** p < .01

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 Model
LFC: 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 Construct
RSL: Ready, Set, Leap!

SOURCE: The Preschool Curriculum Evaluation Research (PCER) Study.