1. Number of Participants within each age and gender group Age Mean S.D. Gender Location of N Group Age Testing Female Male Our School (%) (%) Lab 6 6.50 0.31 18 50 50 2 16 7 7.64 0.24 15 47 53 0 15 8 8.50 0.34 16 56 44 1 15 9 9.49 0.29 23 43 57 2 21 10 10.35 0.23 24 54 46 0 24 Totals 96 50% 50% 5 91 Table 2: Breakdown of Results by Ethnicity and Gender Faster on Faster on Difference in Fewer Fewer Difference congruent congruent RT by errors on errors on in accuracy trials when trials when type did not congruent congruent by trial type Ns those came incongruent vary by order trials when trials when did not vary first came first of those came incongruent by order of presentation first came first presentation Caucasian 26 yes yes yes yes yes yes t(25) = 18.99, t(25) = 22.83, = t(25) = 40.21, t(25) = 45.96, = F(1,24) F(1,24) p < 0.001 p < 0.001 0.80, ns p < 0.001 p < 0.001 0.11, ns
1. Number of Participants within each age and gender group Age Group Mean Age S.D. N Gender Location of Testing Female (%) Male (%) Our Lab School 6 6.50 0.31 18 50 50 2 16 7 7.64 0.24 15 47 53 0 15 8 8.50 0.34 16 56 44 1 15 9 9.49 0.29 23 43 57 2 21 10 10.35 0.23 24 54 46 0 24 Totals 96 50% 50% 5 91 Table 2: Breakdown of Results by Ethnicity and Gender Ns Faster on congruent trials when those came first Faster on congruent trials when incongruent came first Difference in RT by type did not vary by order of presentation Fewer errors on congruent trials when those came first Fewer errors on congruent trials when incongruent came first Difference in accuracy by trial type did not vary by order of presentation Caucasian 26 yes t(25) = 18.99, p < 0.001 yes t(25) = 22.83, p < 0.001 yes F(1,24) = 0.80, ns yes t(25) = 40.21, p < 0.001 yes t(25) = 45.96, p < 0.001 yes F(1,24) = 0.11, ns