“…That is, research has shown that homework help may have not only positive but also detrimental effects on students' academic development (H. Cooper, Lindsay, & Nye, 2000;Desimone, 1999;Pomerantz, Wang, & Ng, 2005;Xu, 2004). In line with these findings, Hill and Tyson (2009) reported in their meta-analysis that homework help was the only type of involvement that was not consistently related to academic achievement. Similarly, in a metaanalysis by Patall, Cooper, and Robinson (2008), focusing only on parental homework involvement, the authors concluded that it has "at best a slightly positive overall impact on achievement" (p. 1062).…”