TABLE 4.
Means and standard deviations at 6 and 12 months and results of repeated-measures analyses of covariance with significance levels and effect sizes for the difference between ACT-only and ACT+IMR groups.
| Condition | 6 months | 12 months | |||||||
|---|---|---|---|---|---|---|---|---|---|
| N | % | N | % | ||||||
| ACT+IMR | 47 | 50 | 42 | 48 | Adjusted | Significance | |||
| ACT-only | 47 | 50 | 46 | 52 | Group Differencea | ||||
| Domain/Measure | Condition | M | SD | M | SD | F | df p | ESb | CI |
| Illness Management | |||||||||
| Client IMR Scale c | ACT+IMR | 50.6 | 10.0 | 52.3 | 9.2 | 2.11 | .15 | .36 | −.33 to 1.05 |
| ACT-only | 51.6 | 7.2 | 50.0 | 10.7 | |||||
| Clinician IMR Scale c | ACT+IMR | 50.8 | 8.1 | 51.0 | 8.9 | 6.35 | .01 | .51 | −.16 to 1.18 |
| ACT-only | 48.1 | 9.0 | 47.8 | 10.7 | |||||
| Symptoms | |||||||||
| BPRSd | ACT+IMR | 46.8 | 13.5 | 47.5 | 21.2 | .32 | .57 | .22 | −.39 to .83 |
| ACT-only | 47.6 | 15.3 | 44.8 | 11.8 | |||||
| Psychosocial Functioning | |||||||||
| GAFe | ACT+IMR | 41.6 | 9.8 | 46.2 | 13.1 | .24 | .63 | .24 | −.67 to 1.14 |
| ACT-only | 39.2 | 9.2 | 44.0 | 11.4 | |||||
| DLA-20f | ACT+IMR | 4.2 | 1.0 | 4.2 | 0.1 | .17 | .68 | .11 | −.53 to .75 |
| ACT-only | 3.9 | 1.0 | 4.1 | 0.9 | |||||
| QLS-Ag | ACT+IMR | 2.7 | 1.1 | 3.1 | 1.2 | 1.15 | .29 | .64 | .02 to 1.24 |
| ACT-only | 2.5 | 1.0 | 2.5 | 1.1 | |||||
| Recovery | |||||||||
| RASh | ACT+IMR | 168.1 | 21.0 | 163.2 | 25.4 | <.01 | .95 | .03 | −.59 to .65 |
| ACT-only | 167.7 | 20.3 | 162.7 | 20.8 | |||||
| Integration | |||||||||
| CIMi | ACT+IMR | 4.0 | 0.7 | 3.9 | 0.8 | .63 | .43 | −.31 | −.91 to .29 |
| ACT-only | 4.0 | 0.6 | 4.1 | 0.7 | |||||
The Adjusted Group Difference is the treatment effect, adjusted by the baseline value of the outcome, with PACT team specified as a random effect to account for clustering of observations within teams.
ES, effect size; CI, 95% confidence interval. Effect size is Cohen’s D for the difference between adjusted means at 12-month follow-up.
Illness Management and Recovery Scales (Client- and Clinician-rated). Possible scores range from 1 to 5, with higher scores indicating better perceived illness management.
Brief Psychiatric Rating Scale. Possible scores range from 0 to 144, with higher scores indicating greater symptom severity.
Global Assessment of Functioning. Possible scores range from 1 to 100, with higher scores indicating greater levels of global functioning.
Daily Living Activities Scale-20. Possible scores range from 1 to 7 for each item, with higher scores indicating greater levels of independent functioning.
Quality of Life Scale-Abbreviated. Possible scores range from 0 to 6, with higher scores indicating higher quality of life.
Recovery Assessment Scale. Possible scores range from 41 to 205, with higher scores indicating greater levels of improvement and recovery.
Community Integration Measure. Possible scores range from 1 to 5 for each item, with higher scores indicating greater perceived integration.