Table 1.
Descriptions of Analysis Sample and Key Measures by Study
| PCER | NCEDL | HSIS | FACES 2003 | FACES 2009 | |
|---|---|---|---|---|---|
| Classroom sample | 170 | 245 | 997 | 308 | 456 |
| Child sample | - | 394 | 1654 | 1565 | 2401 |
| Year of preschool data collection | 2003 | 2001 | 2002 | 2003 | 2009 |
| Percent Head Start classrooms | 35 | 29 | 100 | 100 | 100 |
| Percent state prekindergarten classrooms | 53 | 71 | - | - | - |
| Curricula included (cost per classroom) | |||||
| HighScope ($1150) | Classrooms = 40 Children = 380 |
Classrooms = 84 Children = 359 |
Classrooms = 350 Children = 656 |
Classrooms = 53 Children = 325 |
Classrooms = 66 Children = 424 |
| Creative Curriculum ($2149) | Classrooms = 50 Children = 360 |
Classrooms = 38 Children = 161 |
Classrooms = 416 Children = 854 |
Classrooms = 161 Children =1123 |
Classrooms = 251 Children = 1699 |
| DLM Express ($4108) | Classrooms = 10 Children = 100 |
||||
| High Reach ($1125) | Classrooms = 40 Children = 74 |
Classrooms = 17 Children = 130 |
Classrooms = 24 Children = 179 |
||
| Scholastic ($2900) | Classrooms = 58 Children = 114 |
Classrooms = 14 Children = 106 |
|||
| Other Published Curriculum | Classrooms = 32 Children = 135 |
Classrooms = 193 Children = 361 |
Classrooms = 77 Children = 514 |
Classrooms = 101 Children = 709 |
|
| No Published Curriculum | Classrooms = 70 Children = 600 |
Classrooms = 80 Children = 360 |
|||
| Classroom Activities | Teacher Behavior Rating Scale (Literacy and Math) | Early Academic Snapshot | Teacher survey responses | Teacher survey responses (Literacy) | Teacher survey responses (Literacy and Math) |
| Classroom Quality | ECERS-R, Arnett Caregiver Interaction Sale | ECERS-R, CLASS | ECERS-R, Arnett Caregiver Interaction Scale | ECERS-R, Arnett Caregiver Interaction Scale | ECERS-R, CLASS |
| Child Outcomes | |||||
| Early Academic | - | PPVT, WJ-III Letter Word, Applied Problems | PPVT, WJ-III Letter Word, Spelling, Applied Problems | PPVT, WJ-III Letter Word, Spelling, Applied Problems | PPVT, WJ-III Letter Word, Spelling, Applied Problems |
| Social and Behavioral | - | Teacher-Child Rating Scale | Problem Behavior Rating Scale | Teacher Rating Scale | Teacher Rating Scale |
Note: PCER = Preschool Curriculum Evaluation Research; ECERS = Early Childhood Environment Rating Scale; TBRS = Teacher Behavior Rating Scale; NCEDL = National Center for Early Development and Learning; FACES=Family and Child Experiences Survey; ECERS-R=Early Childhood Environmental Rating Scale-Revised; CLASS=Classroom Assessment Scoring System; WJ=Woodcock-Johnson. PCER classroom count rounded to the nearest 10 per NCES license requirements. PCER child sample and outcome measures are not shown because we could not conduct our child-level analyses using PCER due to the study sample design; see Analyses in main text for more detail. Classroom and child samples reflect our study’s analytic sample, and not the original study samples. Per-classroom cost estimates are approximated from the cost of purchasing the curriculum teacher’s manual or equivalent (in 2015), and the baseline set of materials required to implement the curriculum. Publishers offer different sets of materials and thus costs will vary by publisher and curriculum.