avoid possible alcohol dependence and withdrawal or difficulties adhering to 48 hour alcohol abstention criteria before sessions. During in-person screening, participants completed demographic, background, and self-report alcohol measures, including the Alcohol Use Disorder Identification Test (AUDIT; Barbor et al., 1989), the Alcohol Quantity-Frequency interview for drinking over the past six months (Cahalan et al., 1969), and the non-patient version of the Structured Clinical Interview for DSM-IV Disorders (SCID; First et al., 2002). They also completed a medical history form and underwent a brief medical assessment. These procedures were conducted to ensure that participants met the eligibility criteria for heavy social drinkers and had no past or current major medical or psychiatric condition including alcohol or other substance dependence.
