Publication Date
| In 2025 | 0 |
| Since 2024 | 0 |
| Since 2021 (last 5 years) | 0 |
| Since 2016 (last 10 years) | 0 |
| Since 2006 (last 20 years) | 1 |
Descriptor
| Educational Experiments | 1 |
| Educational Research | 1 |
| Effect Size | 1 |
| Experimental Groups | 1 |
| Matched Groups | 1 |
| Meta Analysis | 1 |
| Research Methodology | 1 |
| Sampling | 1 |
| Student Attrition | 1 |
Source
| Psychological Methods | 1 |
Publication Type
| Information Analyses | 1 |
| Journal Articles | 1 |
| Reports - Evaluative | 1 |
Education Level
Audience
| Researchers | 1 |
Location
Laws, Policies, & Programs
Assessments and Surveys
What Works Clearinghouse Rating
Peer reviewed
Direct linkValentine, Jeffrey C.; McHugh, Cathleen M. – Psychological Methods, 2007
Using meta-analysis, randomized experiments in education that either clearly did or clearly did not experience student attrition were examined for the baseline comparability of groups. Results from 35 studies suggested that after attrition, the observed measures of baseline comparability of groups did not differ more than would be expected given…
Descriptors: Sampling, Effect Size, Student Attrition, Educational Research
