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Summary of analysis of covariance (ANCOVA) when a stressful event is introduced as a covariate in the effect of levels of psychotherapy on poststroke depression.
| Source of variation | SS | df | MS | F | p |
|---|---|---|---|---|---|
| Stress | 2.68 | 1 | 2.68 | 0.084 | >.05 |
| Therapy | 470.21 | 2 | 235.108 | 7.361 | <.01 |
| Total | 1366.16 | 29 |
