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. Author manuscript; available in PMC: 2010 Jul 1.
Published in final edited form as: Stroke. 2009 May 21;40(7):2468–2472. doi: 10.1161/STROKEAHA.109.548347

Table 2.

Motor scores for the more impaired arm before and after CI therapy (Mean ± SD)

Pre-treatment motor scores Treatment change d’ *
All patients (n = 81)
 Motor Activity Log .9 ± .69
 Quality of Movement scale (0-5 points)
 Wolf Motor Function Test 1.28 ± 1.00
 Log2 Performance Time (s)
CI therapy patients (n = 44)
 Motor Activity Log .9 ± .64 1.7 ± .79 2.2
 Quality of Movement scale (0-5 points)
 Wolf Motor Function Test 1.35 ± .96 -.28 ± .41 -.68
 Log2 Performance Time (s) *†
*

Cohen’s d’ is a within subjects measure of effect size; a value of .57 is considered large according to conventions of the meta-analysis literature.28

†

A log2 transformation was applied to the mean Performance Time scores to correct for skewness of the distribution of scores. A decrease in performance time represents an improvement.