Table 2.
Baseline, post, and follow-up scores for measures of defeatist beliefs, motivation for work therapy, and work behavior.
| Measures | IVIP (n=29) | Support Group (n=35) | ANCOVA (p-value; rounded) | Effect Size (Cohen’s D) |
|---|---|---|---|---|
| Defeatist Beliefs | ||||
| Dysfunctional Attitude Scale (DAS) | ||||
| Baseline | 86.92 (14.28) | 84.30 (11.02) | .29 | - |
| Post (4 mo) | 78.36 (11.53) | 79.93 (10.31) | .26 | -- |
| Follow-up (12 mo) | 73.57 (8.17)a | 80.47 (12.38) | .03 | .65 |
| Motivation to Participate in Work Therapy | ||||
| Treatment Self-Regulation Questionnaire (TSRQ) | ||||
| Autonomous motivation subscale | ||||
| Baseline | 3.23 (1.04) | 3.76 (1.73) | .31 | -- |
| Post (4 mo) | 4.15 (0.93) | 4.02 (1.15) | .22 | -- |
| Follow-up (12 mo) | 4.01 (0.88)a | 3.38 (1.47) | .03 | .52 |
| Work performance | ||||
| Work Behavior Inventory (WBI) | ||||
| Baseline | 110.43 (13.11) | 107.47 (9.42) | .27 | -- |
| Post (4 mo) | 127.42 (6.94)a | 113.16 (11.54) | .01 | 1.49 |
| Follow-up (12 mo) | -- | -- | -- | -- |
a
ANCOVA significant at p < .01. F-statistics and P-values for the RM-MANOVA and ANCOVA are reported in the results section.