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. Author manuscript; available in PMC: 2013 Nov 8.
Published in final edited form as: J Dual Diagn. 2012 Nov 8;8(4):283–293. doi: 10.1080/15504263.2012.723317

TABLE 1.

Mean scores on MicroCog Indices

Index Standard
Score*
M(SD) 		Range Range of
Scores 		% Participants
Below Average
Range**
General Cognitive
Functioning		 78.5(16.6) Low Average 50-115 33.1%
General Cognitive
Proficiency		 77.7(13.9) Low Average 50-114 33.1%
Information Processing Speed 85.0(19.5) Average 50-123 21.9%
Information Processing
Accuracy		 80.8(16.2) Low Average 50-117 23.8%
Attention/Mental Control 83.5(17.8) Low Average 50-116 23.8%
Memory 82.8(17.5) Low Average 50-114 25.6%
Spatial Processing 96.6(14.7) Average 50-130 5.6%
Reasoning/Calculation 81.7(17.5) Low Average 50-119 24.4%
Reaction Time 95.5(17.3) Average 50-120 10.0%
*

normative mean = 100, SD = 15

**

Below Average range include scores of 69 or below and correspond to approximately 2.2% of the general population