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Table 5 Means, standard deviations and t values in abstinent alcohol-dependent people (“abstainers”) and healthy individuals (“comparison group”) of other factors such as intelligence, attention, depression, anger expression and hostility that may affect decision making, measured with the Iowa Gambling Task

From: Decision making and impulsiveness in abstinent alcohol-dependent people and healthy individuals: a neuropsychological examination

  Abstainers (n = 40) Comparison group (n = 40)  
  M (SD) M (SD) t value
MWT-B    
IQ – premorbid 114.60(14.82) 109.45(12.58) 1.68
d2    
Processing speed 62.65(33.77) 84.50(18.66) 3.58**
Rule compliance 62.40(26.72) 51.48(26.27) −1.84
Quality of performance 67.38(29.88) 81.28(20.55) 2.43*
BDI-II    
Depression 8.63(8.32) 5.93(5.40) 1.72
STAXI    
State anger 1.25(0.41) 1.14(0.37) 1.27
Trait anger 1.90(0.51) 1.86(0.48) 0.38
BDHI – Factors    
Assault 0.34 (0.21) 0.29 (0.24) 1.01
Indirect hostility 0.42 (0.27) 0.48 (0.22) −1.20
Irritability 0.43 (0.27) 0.45 (0.29) −0.30
Negativism 0.51 (0.29) 0.45 (0.32) 0.89
Resentment 0.26 (0.25) 0.18 (0.20) 1.60
Suspicion 0.38 (0.25) 0.26 (0.23) 2.21*
Verbal hostility 0.46 (0.17) 0.44 (0.20) 0.51
Guilt 0.43 (0.21) 0.33 (0.20) 2.36*
  1. M mean; SD standard deviation
  2. MWT-B multiple-choice word test, BDI-II Beck Depression Inventory II, STAXI State-Trait Anger Expression Inventory, BDHI Buss-Durkee Hostility Inventory
  3. p > .05; * p <. 05; ** p < .01