Fig. 2

Maximum average working memory span length (index) by training day in participants with fragile X syndrome completing adaptive Cogmed JM (N = 32; blue) or RM (N = 18; red) training. JM and RM participants showed significant increases in memory span between Start Index and Maximum Index (JM, paired t (31) = 13.45, p < .0001, Cohen’s d = 2.38; RM, paired t (17) = 17.74, p < .0001; Cohen’s d = 2.62). Error bars show 95% confidence intervals