Table 2.
Comparative profile of parametric digit symbol substitution task performance between schizophrenia patients and healthy controls.
| Variable | Patients (N = 66) | Controls (N = 72) | ta | p |
|---|---|---|---|---|
| Mean ± SD | Mean ± SD | |||
| Number of correct responses (fixed condition) | 38.2 ± 12.4 | 57.1 ± 15.2 | 8.0 | <0.001 |
| Number of correct responses (random condition) | 36.4 ± 11.3 | 53.2 ± 13.6 | 7.8 | <0.001 |
| Reaction time (fixed condition) [s] | 3.4 ± 1.2 | 2.3 ± 0.7 | 7.1 | <0.001 |
| Reaction time (random condition) [s] | 3.7 ± 1.2 | 2.5 ± 0.7 | 7.0 | <0.001 |
aIndependent samples t-test.