Table 8

Delay of gratification task: effect sizes
Study BD group Control group Effect size
Mean (SD) Mean (SD)
Ibanez et al. (2012) N = 13 N = 25
IGT net score 1526.5 (483.0) 1847.1 (564.1) -0.60
IGT blocks 1 and 2 -1.3 (7.9) 0.65 (7.1) -0.26
IGT blocks 3 and 4 1.0 (8.4) 4.3 (8.2) -0.41
Malloy-Diniz et al. (2011) N = 95 N = 94
IGT net score 3.89 (24.28) 20.57 (23.61) -0.70
IGT block 1 1.87 (4.47) 1.2 (5.99) 0.13
IGT block 2 0.49 (5.18) 2.14 (6.80) -0.28
IGT block 3 1.20 (6.72) 5.68 (6.84) -0.66
IGT block 4 1.40 (7.68) 6.93 (8.07) -0.70
IGT block 5 1.52 (8.92) 6.78 (9.13) -0.58
Strakowski et al. (2010) N = 31 N = 35
Delayed reward task (% impulsive) 31 (26) 28 (23) 0.25

Newman and Meyer

Newman and Meyer International Journal of Bipolar Disorders 2014 2:2   doi:10.1186/2194-7511-2-2

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