Table 3.

Mixed-effects regression model to explain accuracy on tracking task using predictors for OT/placebo (drug), alcohol intake (units per week) and their interaction, with heart rate (HR), anxiety (STAI), depression (BDI), alexithymia (TAS-20) and drug sequence as control variables, including all participants

	β	SE	z value	P value
(Intercept)	0.794	0.025	32.254	0.000***
Drug	–0.078	0.034	–2.287	0.030*
Units per week	–0.002	0.001	–1.689	0.105
HR	–0.005	0.002	–3.301	0.002**
STAI	–0.005	0.002	–2.687	0.013*
BDI	0.007	0.002	3.148	0.004**
TAS-20	–0.001	0.002	–0.676	0.506
Sequence	–0.050	0.030	–1.689	0.102
Drug*Units	0.002	0.002	1.256	0.220

Formula: Accuracy ∼ Drug * Units per week + HR + STAI + BDI + TAS-20 + Sequence + (1 + Drug|ID); signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05.