Table 2. Neuropsychological Performance in Pass and Fail Groups.
SZ-PASS | SZ-FAIL | Test Statistic, p value | Effect Sizes (ηp2) | |
---|---|---|---|---|
Estimated FSIQ (WAIS-III) | 84.66 (16.21) | 68.48 (10.35) | F = 29.56, p <0.001 | |
WRAT-3 Scaled Scores | 90.03 (15.16) | 75.32 (17.93) | F = 25.50, p <0.001 | |
RBANS Total | 72.24 (13.88) | 51.13 (5.24) | F = 73.56, p < 0.001 | 0.18 |
Immediate Memory | 75.65 (17.42) | 50.19 (7.78) | F = 61.19, p < 0.001 | 0.16 |
Visuospatial | 79.38 (17.63) | 68.39 (13.48) | F = 11.29, p = 0.001 | 0.03 |
Language | 82.88 (14.67) | 69.61 (16.62) | F = 31.24, p < 0.001 | 0.09 |
Attention | 74.47 (15.49) | 51.71 (9.21) | F = 72.28, p < 0.001 | 0.18 |
Delayed Memory | 77.40 (17.78) | 49.84 (11.44) | F = 70.99, p < 0.001 | 0.18 |
Note: FSIQ= Full Scale Intelligence Quotient, WAIS-III = Wechsler Adult Intelligence Scale, 3rd Edition, WRAT-3 = Wide Range Achievement Test, 3rd Edition, RBANS = Repeatable Battery for the Assessment of Neuropsychological Status, SZ-PASS = Individuals with schizophrenia that passed the RBANS Effort Index, SZ-FAIL = Individuals with schizophrenia that failed the RBANS Effort Index. A total of 330 patients had WAIS-III data: 299 SZ-PASS and 31 SZ-FAIL, a total of 329 patients had WRAT-3 data: 298 SZ-PASS and 31 SZ-FAIL, and a total of 330 patients had RBANS data: 299 SZ-PASS and 31 SZ-FAIL.