how was this data analysed - To test the hypotheses that preschool attendance and child sex would predict higher self-regulation in kindergarteners, a 2 x 2 (Condition [preschool, no preschool] x Sex) between-subjects Analysis of Variance was performed on the Balance Beam and the Gift Wrap Scores. The Balance Beam Scores were significantly higher in the preschool attendance condition (M= 6.62, SD= 8.68) than in the no preschool attendance condition (M= -2.47, SD = 10.06), F( 1, 33) = 6.18, p = .02, r j2 = .15. Also, the Gift Wrap Scores were significantly higher for those in the preschool attendance condition (M = 104.34, SD = 22.99) than in the no preschool attendance condition (M= 65.96, SD = 46.18), F(l, 33) = 10.69, p = .003, r j2 = .24. There were no significant main effects for sex or condition by sex interactions for the Balance Beam and Gift Wrap Scores. To further test the hypothesis that preschool attendance and child sex would predict higher self-regulation in kindergarten children, a 2 x 2 (Condition [preschool, no preschool] x Sex) between-subjects Analysis of Variance was performed on the teacher ratings of behavioral self-control and the teacher ratings of cognitive self-control. The main effect for sex was significant with teacher's ratings of behavioral self-control for girls (M= 18.12, SD = 5.22) higher than for boys (M= 11.75, SD= 6.81), F(l, 33) = 6.94, p= .01, r|2 = .17. In addition, the main effect for sex was significant with teacher's ratings of cognitive self-control for girls (M= 16.47, SD = 3.67) higher than for boys (M= 11.70, SD = 5.58), F(l, 33) = 7.73, p< .001, rj2 = .19. There were no significant main effects for condition or condition by sex interactions for the teacher ratings of behavioral or cognitive self-control. D is cu s s io n The results of the current study were mixed