The purpose of this study was to investigate the Attention Deficit/Hyperactivity Disorder (ADHD) by neuropsychological tests of children. There were two groups of subjects; one group was 23 ADHD children, the other group was 33 normal children. All of the subjects were 5 to 8 years old (mean 7.05). The social economic status differences were nonsignificant between the two groups (chi-square 0.52, p> 0.05). The instruments were WISC-R, Tests of Psycholinguistic Abilities, Diagnostic Arithmetic Test, and Reitan-Indiana Neuropsychological test for yound children. The findings were: (1) For all IQs (verbal, performance, full), the ADHD group was significantly lower than the normal group, and there were 8 (34.8%) ADHD children who were mental retards, 3 (13.0%) ADHD children were borderline mentSchool al retards, and there was just one (3.0%) not-rnal child who was a borderline mental retard. (2) For academic abilities (Tests of Psycholinguistic Abilities, and Diagnostic Arithmetic Tests), the ADHD group was significantly (p<0.05) lower than the normal group, and the higher the grade, the larger the difference. (3) For neuropsychological tests, if cut-off points of performance level (0, 1, 2, 3) were percentile 5, 10, and 25 for all of the subjects, then there 12 variable criteria were lower than the Reitan¡¦s, 3 variable criteria were higher than the Reitan¡¦s, 29 variable criteria were similar with Reitan¡¦s, and 8 variables were indiscriminate between individuals. (4) The motor functions and higher cognitive abilities of the ADHD group were worse than those of the normal group.
The purpose of this study was to investigate the Attention Deficit/Hyperactivity Disorder (ADHD) by neuropsychological tests of children. There were two groups of subjects; one group was 23 ADHD children, the other group was 33 normal children. All of the subjects were 5 to 8 years old (mean 7.05). The social economic status differences were nonsignificant between the two groups (chi-square 0.52, p> 0.05). The instruments were WISC-R, Tests of Psycholinguistic Abilities, Diagnostic Arithmetic Test, and Reitan-Indiana Neuropsychological test for yound children. The findings were: (1) For all IQs (verbal, performance, full), the ADHD group was significantly lower than the normal group, and there were 8 (34.8%) ADHD children who were mental retards, 3 (13.0%) ADHD children were borderline mentSchool al retards, and there was just one (3.0%) not-rnal child who was a borderline mental retard. (2) For academic abilities (Tests of Psycholinguistic Abilities, and Diagnostic Arithmetic Tests), the ADHD group was significantly (p<0.05) lower than the normal group, and the higher the grade, the larger the difference. (3) For neuropsychological tests, if cut-off points of performance level (0, 1, 2, 3) were percentile 5, 10, and 25 for all of the subjects, then there 12 variable criteria were lower than the Reitan¡¦s, 3 variable criteria were higher than the Reitan¡¦s, 29 variable criteria were similar with Reitan¡¦s, and 8 variables were indiscriminate between individuals. (4) The motor functions and higher cognitive abilities of the ADHD group were worse than those of the normal group.