In the event of significant relationships involving impulsivity, we took two steps to interpret these results. First, we plotted subjective response scores by self-reported impulsivity quartile. Second, when we found impulsivity by time interactions, we fitted additional models to examine changes between the individual timepoints during ethanol infusion (between the +10 and +30 timepoints and between the +30 and +60 timepoints) and across the post-infusion timepoints (from the +110 through the +230 timepoint) to determine when significant associations with impulsivity were most relevant. Alpha was Bonferroni-corrected in these additional models.
