This paper reviewed 24 studies of parent involvement for school-aged children conducted between 1980 and 2002 and evaluated them according to the criteria developed by the Task Force on Evidence-Based Interventions in School Psychology. The parent involvement component of all studies had parents helping children learn at home, with most targeting a change in academic performance, including reading skills, mathematics skills, spelling, and homework completion. Results yielded a wide range of treatment effectiveness. The strongest evidence for parent involvement was provided for programs that implemented parent tutoring in the home and targeted a single academic problem of the elementary school-aged child, primarily reading and mathematics skills. Despite promising evidence for the effectiveness of parent home tutoring, it was concluded that the evidence base for the effectiveness of parent involvement as an intervention for children's academic problems is inconclusive due to methodological weaknesses in the studies reviewed. Recommendations for future empirical research are provided.