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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Neuropsychologia. 2013 Aug 1;51(11):2202–2209. doi: 10.1016/j.neuropsychologia.2013.07.017

Table 3.

Effect sizes (Cohen’s d) reflecting cognitive performance differences between elderly pathology status groups and pathology-free age groups.

PiB(−) vs . PiB(+) WMH(−) vs. WMH(+) young vs. PiB(−)/WMH(−)
 Information processing speed
Perceptual Comparison RT (ms) 0.06 0.04 1.76
Conceptual Comparison RT (ms) 0.36 0.06 1.45
Sensorimotor Time RT (ms) 0.01 0.15 0.68
 Working memory
N Back −0.2 −0.03 0.52
Letter – Number Sequence 0.28 0.11 0.85
 Inhibitory control
Stroop: # of intrusions 0.11 0.35 0.4
Stroop: RT difference (ms) 0.27 −0.26 0.92
Hayling: # of intrusions 0.23 0.48 0.12
Hayling: RT difference (ms) 0.45 0.44 0.07

Note: Higher Cohen’s d reflects better mean performance in pathology-negative compared to pathology-positive groups, and in young compared to pathology-free elderly.