Learning in primary > Class size (eLP) > Krueger 1999
Detailed Information
| Country | Country: United States |
|---|---|
| GDP per capita | 35.108 |
| Context details | Inner-city, suburban, urban, and rural schools, large enough to accommodate at least 3 classes per grade, in Tennessee |
| Age | Kindergarten |
| Implementation year | 1985 |
|---|---|
| Implementer | Government |
| Duration (months) | 16 |
| Cost | Reducing class size by one-third increases costs per student by about $2151 per year. |
| Intervention details | Class size reduction from 25 to 20 students (computed from the original estimate of reducing the class size from 23.5 to 15); 80 schools participated |
| Evaluation design | Randomized evaluation |
|---|---|
| Cluster definition | Class |
| Sample | Outcome | Test | Source Table | Observations | Statistics on Effects |
|---|---|---|---|---|---|
| Grade 3 | Combined | SAT | 5 | 6109 | Coeff: 5.00; SE: 1.19; Effect Size: 19.00 |
| Grade K | Combined | SAT | 5 | 5861 | Coeff: 5.37; SE: 1.19; Effect Size: 20.00 |
| Grade 2 | Combined | SAT | 5 | 5950 | Coeff: 5.79; SE: 1.23; Effect Size: 22.00 |
| Grade 1 | Combined | SAT | 5 | 6452 | Coeff: 7.40; SE: 1.18; Effect Size: 28.00 |