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. 2014 Oct;9(4):197–202.

Table 2.

mean and SD scores of the normal group and ADHD in Wisconsin Card Sorting Test

Percentiles Normal group ADHD

Mean SD Mean SD
Total errors 19.18 12.69 28.71 14.22
Perseverative responses 13.92 10.61 23.17 15.22
Perseverative errors 17.78 11.32 26.89 11.75
Non-perseverative errors 5.97 7.08 9.24 11.63