Trained B.A.-level research assistants conducted the pretreatment and follow-up assessments. Because slightly different follow-up procedures were used for different treatments, research assistants could not be blinded to treatment condition. In-person interviews were conducted at months 3 (posttreatment), 9, 15, 21, and 27. Assessments at months 6, 12, 18 and 24 were conducted by telephone. Participants were compensated $40 for attending the initial intake assessment, $50 for each in-person follow-up assessment, and $20 for each telephone follow-up. If an in-person interview was not possible a telephone interview was conducted. At the 21-month and 27-month follow-ups 79% and 76% of the interviews were conducted in person, respectively.
