This article describes a study evaluating the impact of school-counselor-led interventions on student academic achievement and school success behavior. A group counseling and classroom guidance model called student success skills (SSS) was the primary intervention. The focus of the SSS model was on three sets of skills identified in several extensive reviews of educational research as being critical to school success: cognitive, social, and self management skills. Students in grades five, six, eight, and nine participated. Positive effects on multiple measures were found. (Contains 4 tables.)