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. 2020 Jun 23;3:e7. doi: 10.1017/pen.2020.7

Table 1.

Simple t-test comparisons of main demographics and covariates for both substance groups

Variable Sulpiride condition Placebo condition t p
M SD M SD
Age 25.32 3.91 24.79 3.99 0.95 0.342
BMI 24.13 2.86 23.93 2.89 0.49 0.624
Fluid IQ 116.56 13.41 113.48 15.69 1.51 0.134
Crystallized IQ 101.29 12.36 101.77 13.55 −0.26 0.793
BIS 17.44 3.35 16.80 3.04 1.42 0.156
BAS 39.82 4.02 39.67 3.81 0.27 0.785
Extraversion 162.28 18.25 161.56 16.89 0.29 0.771
MaxMot-L 118.85 18.39 119.24 21.13 −0.14 0.890
MaxMot-R 131.18 19.15 137.01 19.69 −2.14 0.034

BMI = body mass index; fluid IQ = intelligence quotient of fluid intelligence; crystallized IQ = intelligence quotient of crystallized intelligence; BIS = behavioral inhibition system; BAS = behavioral activation system; MaxMot-L= maximum number of clicks within motoric trials exhibited with the left hand; MaxMot-R = maximum number of clicks within motoric trials exhibited with the right hand. Significant effects in bold.