Block design	Range	Mean	T	P
Cases	0 - 16	3.244 ± 4.024	−11.102	0.000^*
Control	0 - 23	12.644 ± 4.734	−11.102	0.000^*
Digit Span Test
Cases	3 - 12	7.400 ± 1.864	−4.095	0.000^*
Controls	4 - 15	8.933 ± 1.684	−4.095	0.000^*
Letter Verbal Fluency Test
Cases	0 - 11	3.222 ± 2.819	−2.592	0.005^*
Controls	0 - 13	5.022 ± 3.708	−2.592	0.005^*
Animal Verbal Fluency Test
Cases	2 - 14	7.600 ± 3.078	−7.290	0.000^*
Controls	8 - 23	11.955 ± 2.566	−7.290	0.000^*
Clock Drawing Test
Cases	0 - 7	5.200 ± 2.777	9.323	0.000^*