Table 3

Results of the analyses comparing the ALL group with siblings on the four measures of focused attention

TestALL mean (n = 19)Siblings mean (n =19)Mean (SE) differenceWilcoxon Z scorep Value
Arithmetic8.429.63−1.21 (0.65)−1.890.02
Digit span7.689.42−1.74 (0.54)−2.660.004
Coding8.7910.63−1.84 (0.78)−2.030.04 (two tailed)
Speed of info48.5055.44−6.94 (2.23)−2.600.005