Table 3.
Mixed Effects Models – Immediate Post-intervention Estimates for Group-by-time Interaction.
| Measures | Group × Time | ||||
|---|---|---|---|---|---|
| B | SE | p | r | ||
| Symptom severity | CAINS total | −0.10 | 0.13 | .423 | −0.09 |
| CAINS motivation and pleasure | −0.13 | 0.11 | .245 | −0.13 | |
| CAINS expression | 0.03 | 0.06 | .540 | 0.07 | |
| SANS total | −0.13 | 0.07 | .049 | −0.22 | |
| SANS diminished motivation | −0.23 | 0.11 | .037 | −0.24 | |
| SANS diminished expression | −0.20 | 0.14 | .141 | −0.17 | |
| BPRS positive symptoms | 0.02 | 0.06 | .761 | 0.03 | |
| Birchwood Insight Scale | −0.10 | 0.06 | .115 | −0.17 | |
| Calgary Depression Scale | 0.03 | 0.04 | .508 | 0.08 | |
| Cognition/Functioning | MCCB global | 0.07 | 0.09 | .418 | 0.14 |
| MCCB processing speed | 0.09 | 0.17 | .602 | 0.09 | |
| MCCB attention/vigilance | −0.39 | 0.25 | .132 | −0.28 | |
| MCCB working memory | −0.08 | 0.15 | .587 | −0.10 | |
| MCCB verbal learning | 0.43 | 0.18 | .026 | 0.36 | |
| MCCB visual learning | 0.09 | 0.18 | .611 | 0.09 | |
| MCCB reasoning/problem solving | 0.34 | 0.18 | .076 | 0.30 | |
| SSPA total score | 0.02 | 0.01 | .211 | 0.20 | |
| UPSA total score | 0.41 | 0.32 | .214 | 0.21 | |
| SLOF functional composite | −0.01 | 0.02 | .685 | −0.05 | |
| ILSS composite score | 0.002 | 0.001 | .195 | 0.15 | |
| Defeatist beliefs and motivation | Asocial Belief Scale | −0.08 | 0.07 | .309 | −0.12 |
| Defeatist attitudes (DPAS) | −0.54 | 0.46 | .243 | −0.13 | |
| Intrinsic motivation (QLS–3 items) | 0.06 | 0.07 | .415 | 0.09 |
Bold font denotes p < .05. BPRS = Brief Psychiatric Rating Scale; CAINS = Clinical Assessment Interview for Negative Symptoms; DPAS = Defeatist Performance Attitude Scale; ILSS = Independent Living Skills Survey; MCCB = MATRICS Consensus Cognitive Battery; QLS = Quality of Life Scale; SANS = Scale for the Assessment of Negative Symptoms; SLOF = Specific Levels of Functioning Scale; UPSA = University of California San Diego Performance Assessment.