Frequency of alcohol consumption, amount of alcohol typically consumed, and frequency of binge drinking were assessed during Waves I and II with the NIAAA Alcohol Use Disorders and Associated Disabilities Interview Schedule- version for DSM IV (AUDADIS-IV), a well-established and valid measure of drinking outcomes (Grant et al., 1995; 2001; 2003a; 2003b). Changes in alcohol consumption between Waves I and II were calculated by subtracting the consumption measure in Wave 1 from the consumption measure in Wave II.
