The authors investigated whether student-perceived parental involvement predicts improvement in academic, behavioral, and relational outcomes for low-achieving adolescents. With a sample of 59 racially diverse 9th-grade students, the authors measured 3 dimensions of parental involvement: direct participation, academic encouragement, and expectations for grades and attainment. Analyses revealed associations between 2 types of parental involvement and outcomes, which held after considering student gender and race. Students whose parents had higher expectations about grades and attainment had higher grade point averages and were rated as more academically engaged by their teachers. Students who reported that their parents were more academically encouraging experienced more care from their teachers. Results suggest certain types of parental involvement may be more effective than others in supporting low-achieving adolescents' school performance. (Contains 5 tables.)