Table 2.
Unadjusted Percent With Medium (≥0.5 SD) and Large (≥1.0 SD) Improvements in Internal, Chance, and Powerful Others Locus of Control Scales at 5 Years by Treatment Group (N = 1,534)
| Improvement level | Internal locus of control | Chance locus of control | Powerful others locus of control |
| Medium (≥0.5 SD) | |||
| Memory | 20.6 | 27.0 | 26.7 |
| Reasoning | 23.3 | 26.7 | 29.8 |
| Speed of processing | 22.3 | 26.6 | 25.7 |
| No-contact control | 16.1 | 23.3 | 22.9 |
| Large (≥1.0 SD) | |||
| Memory | 12.6 | 11.9 | 11.8 |
| Reasoning | 12.5 | 10.6 | 10.4 |
| Speed of processing | 12.6 | 13.0 | 11.2 |
| No-contact control | 8.4 | 10.6 | 8.9 |