“…In particular, a number of researchers have reported negligible, and in some cases adverse, effects of parental homework assistance on children's school achievement (Cooper, 1989;Levin et al, 1997;Pezdek, Berry & Renno, 2002). On the other hand, there is clear evidence from experimental analyses that when parents are trained in effective instructional techniques, their interventions in their children's education are reliably and substantially effective (e.g., Duvall, Delquadri, Elliot, & Hall, 1992;Persampieri, Gortmaker, Daly, Sheridan, & McCurdy, 2006;Resetar, Noell, & Pellegrin, 2006).…”