Here’s a brief list of the research (you can find it here) about parent involvement related to student achievement. Enjoy.
Ann Shaver and Richard Walls (1998) looked at the impact of school-based parent workshops on the achievement of 335 Title I students in nine schools in a West Virginia district . . . . The researchers found that students with more highly involved parents were more likely to gain in both reading and math than children with less involved parents. This finding held across all income and education levels.