marginally significantp = .06
A two-way ANOVA for RTs showed that the main effect of neighborhood size was not significant in participant analysis [F 1 (1,105) = 0.65, p = .42], and marginally significant in item analysis [F 2 (1,96) = 3.54, p = .06]; the main effect of grade was significant in both participant and item analysis [F 1 (2,105) = 3.56, p <.05; F 2 (2,96) = 4.92, p <.01], post hoc analysis showed that the 3 rd graders responded significantly slower than the other two groups ( ps <.05), and there was no remarkable difference between the 5 th and 7 th graders ( p >.1); the two-way interaction was significant in participant analysis [F 1 (2,105) = 8.08, p <.01], but non-significant in item analysis [F 2 (2,96) = 0.45, p = .64].