or urine toxicology screen (cocaine, opiates, benzodiazepines, amphetamines, barbiturates, and phencyclidine), or positive pregnancy test. Recreational marijuana use was allowed, provided it was used no more than 3 times weekly. Participants also completed a 2-generational FH tree for alcohol use disorders and an interview of FH Research Diagnostic Criteria for drinking consequences.60 The term FH positive was defined as having at least 1 primary biological relative, or 2 or more secondary biological relatives, with an alcohol use disorder, and FH negative was defined as having no biological relatives in the past 2 generations with an alcohol use disorder. The 45 participants with either uncertain or intermediate FH were not included in analyses pertaining to FH. Participants also completed the Sensation Seeking Scale–Form V.61 As in other studies,62 we modified the disinhibition subscale to remove 3 of the 10 items pertaining to behavior associated with excessive alcohol drinking or partying.
