Symbolic working memory—correct trials and average total time to completion

non-MCI (n = 33)MCI (n = 24)significance
4-span correct trials (range 0–3)2.82 (0.39)2.58 (0.65)ns
4-span average total time (secs.)5.80 (2.03)8.44 (3.74P < 0.001
5-span correct trials (range 0–3)2.21 (0.74)1.46 (1.21)P < 0.005
5-span average total time (secs.)8.72 (3.71)10.81 (4.91)ns
6-span correct trials (range 0–3)0.64 (0.740.33 (0.48)ns
6-span average total time (secs.)11.41 (5.25)11.62 (4.63)ns

ns: not significant