Clinical Study
Cognitive Training for Schizophrenia in Developing Countries: A Pilot Trial in Brazil
Table 2
Results at after intervention in the CT and control groups and effect-sizes.
| | Experimental mean ± SE | Control mean ± SE | Between groups
| Within groups
| Interaction | Effect-size (Cohen's |
| Positive and negative syndrome scale for schizophrenia | Negative subscale | | | | | | | Baseline | | | 0.303 | 0.358 | 0.753 | 0.877 | Post | | | Positive subscale | | | | | | | Baseline | | | 0.610 | 0.012 | 0.935 | 0.000 | Post | | | General psychopathology subscale | | | | | | | Baseline | | | 0.576 | 0.044 | 0.581 | 0.486 | Post | | | Total score | | | | | | | Baseline | | | 0.599 | 0.275 | 0.760 | 0.263 | Post | | |
| Neuropsychological measures | Trail Making A | | | | | | | Baseline | | | 0.903 | 0.003 | 0.019 | 0.821 | Post | | | Trail Making B | | | | | | | Baseline | | | 0.900 | 0.045 | 0.427 | 0.272 | Post | | | Stroop Test Card I | | | | | | | Baseline | | | 0.756 | 0.343 | 0.799 | 0.691 | Post | | | Stroop Test Card II | | | | | | | Baseline | | | 0.334 | 0.001 | 0.930 | 0.015 | Post | | | Stroop Test Card III | | | | | | | Baseline | | | 0.958 | 0.553 | 0.036 | 1.549 | Post | | | MWCST total categories | | | | | | | Baseline | | | 0.562 |
0.478 | 0.067 | 1.177 | Post | | | MWCST perseverative errors | | | | | | | Baseline | | | 0.549 | 0.046 | 0.395 | 0.134 | Post | | | MWCST failure to maintain set | | | | | | | Baseline | | | 0.702 | 0.745 | 0.010 | 1.086 | Post | | | Logical memory I | | | | | | | Baseline | | | 0.854 | 0.468 | 0.680 | 0.199 | Post | | | Logical memory II | | | | | | | Baseline | | | 0.802 | 0.643 | 0.003 | 1.618 | Post | | | Visual reproduction I | | | | | | | Baseline | | | 0.378 | 0.157 | 0.404 | 0.261 | Post | | | Visual reproduction II | | | | | | | Baseline | | | 0.053 | 0.072 | 0.103 | 1.127 | Post | | |
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Interaction: groups time. SE: standard error.
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