The restricted-use file for this study contains data from a sample of 2004 and 2005 mentoring program grantees, and students who were randomly assigned to either receive or not receive services from one of those grantees. The data include: students' school and district records of disciplinary infractions, absences, truancy, grades, and performance on state assessments; self-reported attitudes and behaviors from student surveys; and information on program implementation from surveys of students' mentors and program grantees.