Table 3.
Expected quantitative results
| Outcome | Question | Data | Analysis | Expected result |
| Main | Is the psychological state improved? | Global Severity Index on the Brief Symptom Inventory | ANCOVA of T1-T0, T2-T0, T0 as dependent, treatment condition as fixed factor | Experimental group statistically and clinically significantly improved compared with SAU |
| Secondary | Is optimism improved? | Life Orientation Test-Revised | ANCOVA of T1-T0, T2-T0, T0 as dependent, treatment condition as fixed factor | Experimental group statistically and clinically significantly improved compared with SAU |
| Is quality of life improved? | 36-item Medical Outcome Study Short-Form Health Survey-Mental Component Score | ANCOVA of T1-T0, T2-T0, T0 as dependent, treatment condition as fixed factor | Experimental group statistically and clinically significantly improved compared with SAU | |
| Is the burden reduced? | Zarit Burden Interview | ANCOVA of T1-T0, T2-T0, T0 as dependent, treatment condition as fixed factor | Experimental group statistically and clinically showed significant reduction compared with SAU | |
| Is the patient’s social and occupational function improved? | Social and Occupational Functioning Assessment Scale | ANCOVA of T0-T2, T0 as dependent, treatment condition as fixed factor | Experimental group statistically reported improvements for patients compared with SAU |
ANCOVA, analysis of covariance; SAU, support as usual.