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Table 2 The mean, SD, ICC, Cohen’s d, SEM and MDC of the TONI-4 (n = 103)

From: Test–retest reliability and convergent validity of the test of nonverbal intelligence-fourth edition in patients with schizophrenia

TONI-4

Early assessment

Mean (SD)

Late assessment

Mean (SD)

Cohen’s d

ICC (95% CI)

SEM (SEM%)

MDC (MDC%)

Sum score

92.4 (9.1)

91.9 (9.9)

−0.03

0.73 (0.62–0.81)

4.7 (5.1)

13.1 (14.2)

Age band

 20–39

92.5 (8.7)

93.8 (10.4)

0.13

0.70 (0.45–0.85)

4.7 (5.1)

13.2 (14.2)

 40–49

92.2 (9.6)

89.3 (9.7)

−0.29

0.64 (0.37–0.81)

5.8 (6.3)

16.0 (17.3)

 50–70

92.4 (9.2)

92.5 (9.6)

0.00

0.82 (0.69–0.90)

3.9 (4.2)

10.9 (11.7)

Gender

 Male

92.3 (9.3)

93.4 (9.7)

0.12

0.70 (0.53–0.81)

5.1 (5.5)

14.1 (15.3)

 Female

92.4 (8.9)

90.4 (10.0)

−0.21

0.76 (0.61–0.86)

4.4 (4.7)

12.1 (13.1)

  1. Note: SD Standard deviation, ICC Intra-class correlation coefficient, SEM Standard error of measurement, SEM% Percentage of standard error of measurement, MDC Minimal detectable change, MDC% Percentage of minimal detectable change