Figure 2.

Number of Standard Drinks Per Drinking Day by Study Group [Mean (SEM)]. Data are presented as biweekly means (at the midpoint of 2-week period), derived from daily reports. There were no pretreatment group differences on this measure. Differences evident at period 1, i.e., during weeks 1–2, reflect differences that emerged during the first two weeks following the initiation of treatment. Significant treatment effects are described in the text.