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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: J Exp Child Psychol. 2016 Sep 2;152:278–293. doi: 10.1016/j.jecp.2016.07.011

Table 1.

Mean (standard deviation) pre- and posttest scores sorted by the two training groups.

Age (years) Sex (# Boys) TEMA PPVT STM Stroop Interference Card Sorting
Pre Post Pre Post Pre Post Pre Post Pre Post
Approximate-arithmetic group (N=51) 4.9 (0.4) 26 95.5 (12.1) 100.1 (14.1) 96.6 (13.6) 98.6 (15.4) 11.8 (3.2) 12.1 (3.3) 0.60 (0.23) 0.64 (0.24) 0.95 (0.36) 0.83 (0.28)
Picture-memory group (N=52) 4.9 (0.4) 27 94.6 (17.2) 96.4 (16.3) 95.1 (16.8) 95.2 (15.9) 10.8 (4.3) 12.0 (4.2) 0.63 (0.23) 0.69 (0.23) 0.94 (0.42) 0.83 (0.36)