Table 3.
Baseline | Posttreatment | F Test | Between-group effect size (d) | |||
---|---|---|---|---|---|---|
MCT-JTC | AC | MCT-JTC | AC | Group Effect (F) | ||
Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |||
MacCAT-T understanding | 3.62 (1.40) | 3.30 (1.46) | 4.30 (1.49) | 3.59 (1.57) | 2.06 | .49 |
MacCAT-T appreciation | 3.21 (1.08) | 2.90 (1.28) | 3.86 (0.58) | 3.00 (1.35) | 6.45* | .87* |
MacCAT-T reasoning | 6.2 (1.23) | 5.44 (1.89) | 6.89 (1.24) | 5.56 (2.00) | 3.95** | .68** |
MacCAT-T expressing choice | 1.95 (0.23) | 1.89 (0.32) | 1.95 (0.23) | 1.93 (0.24) | b | b |
MacCAT-T total | 14.93 (3.37) | 13.58 (4.17) | 16.8 (2.83) | 13.9 (4.37) | 7.78* | .96* |
HADS anxiety | 9.21 (5.39) | 7.22 (4.13) | 9.16 (4.71) | 7.52 (4.55) | 2.21 | −.18 |
HADS depression | 6.16 (4.14) | 3.39 (2.68) | 7.32 (3.60)a | 3.44 (2.39)a | b | .30 |
HADS total | 15.38 (8.17) | 11.11 (5.40) | 16.26 (7.18) | 10.99 (5.87) | 2.21 | −.51 |
CBQP JTC subscale | 11.21 (3.87) | 10.56 (2.20) | 10.67 (3.05) | 10.60 (1.57) | .33 | .20 |
CBQP Total | 48.89 (11.10) | 45.44 (9.83) | 45.40 (9.42) | 43.54 (8.39) | .35 | .20 |
Beads task | 3.84 (2.91) | 3.67 (2.68) | 6.16 (4.05) | 3.72 (3.36) | 7.35* | .93* |
Note: MCT, metacognitive training; AC, attention control; MacCAT-T, MacArthur Competency Assessment Tool for Treatment; HADS, Hospital Anxiety and Depression Scale; CBQP, Cognitive Biases Questionnaire for Psychosis: JTC, jumping-to-conclusions.
aMean change for MCT-JTC and control was 1.16 (SD 3.17) and 0.05 (SD 3.09), respectively.
bData violated necessary assumptions therefore ANCOVA was not possible. Between group difference for MacCAT-T Expressing Choice was nonsignificant.
*P < .05; **P < .1.