Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 1 |
| Since 2006 (last 20 years) | 1 |
Descriptor
| Achievement Tests | 1 |
| Check Lists | 1 |
| Child Behavior | 1 |
| Control Groups | 1 |
| Definitions | 1 |
| Disadvantaged Youth | 1 |
| Early Childhood Education | 1 |
| Early Intervention | 1 |
| Experimental Groups | 1 |
| Federal Programs | 1 |
| Intelligence Tests | 1 |
| More ▼ | |
Source
| Educational Evaluation and… | 1 |
Author
| Shapiro, Anna | 1 |
| Weiland, Christina | 1 |
Publication Type
| Journal Articles | 1 |
| Reports - Research | 1 |
Education Level
| Early Childhood Education | 1 |
| Preschool Education | 1 |
Audience
Location
Laws, Policies, & Programs
Assessments and Surveys
| Child Behavior Checklist | 1 |
| Peabody Picture Vocabulary… | 1 |
| Woodcock Johnson Tests of… | 1 |
What Works Clearinghouse Rating
Peer reviewed
Download full text
Direct linkShapiro, Anna; Weiland, Christina – Educational Evaluation and Policy Analysis, 2019
There are unique challenges to estimating causal effects of preschool for students with special needs that have not received attention in the literature. We revisit the Head Start Impact Study (HSIS) to illustrate that when and how special needs is defined has implications for the internal validity of and interpretation of special needs subgroup…
Descriptors: Definitions, Special Education, Preschools, Preschool Children
