Table 3.

Neurocognitive Test Results for the Study and Control Groups

Study GroupControl Group
(n = 18)
(n = 18)t Test
FunctionMean(SD)Mean(SD)tP
Language
 Similarities (WISC–R)9.1(2.0)10.9(1.7)2.9.007
 General comprehension (WISC–R)8.7(2.0)10.8(1.6)−3.3.003
 Reading comprehension2.9(2.4)3.4(1.9)−0.6NS
Memory
 Auditory (digit span, WISC–R)8.3(2.4)10.4(2.6)−2.4.019
 Visual (Benton's Visual Retention)11.9(2.4)11.9(2.7)0.0NS
Visual-motor-spatial block design (WISC–R)10.5(2.4)11.2(2.3)−0.9NS
 Visual-motor integration (Beery)37.9(7.1)37.4(10.2)0.2NS
Fine motor (Purdue pegboard)
 Dominant hand14.7(2.3)15.2(2.1)−0.7NS
 Nondominant hand13.8(1.9)14.0(1.2)0.4NS
 Both hands11.8(1.6)11.9(1.7)−0.2NS
 Assembly33.3(9.4)36.5(6.2)−1.2NS
  • Abbreviations: SD, standard deviation; NS, not significant; WISC–R, Wechsler Intelligence Scale for Children–Revised.