Table 1.
Demographic and Cognitive Sample Characteristics of 103 Healthy Adults
| Variable | N | Mean | SD | Skewness | Kurtosis |
|---|---|---|---|---|---|
| Age | 103 | 29.13 | 9.37 | 1.80 | 2.68 |
| Female (%) | 49 (47.60%) | ||||
| IQ (MWT-B estimate) | 103 | 105.28 | 12.08 | 1.30 | 1.20 |
| Neuropsychological assessment | |||||
| Age | 63 | 30.32 | 10.47 | 1.52 | 1.48 |
| Female (%) | 28 (44.40%) | ||||
| IQ (MWT-B estimate) | 63 | 108.70 | 13.42 | 0.94 | −0.10 |
| MWT-B Score | 63 | 29.22 | 3.48 | −0.03 | −0.53 |
| WAIS-III | |||||
| Arithmetic | 63 | 16.41 | 3.78 | −0.48 | −0.78 |
| Digit symbol coding task | 63 | 83.63 | 14.93 | −0.04 | −0.48 |
| Matrix reasoning | 63 | 20.89 | 3.45 | −0.72 | −0.21 |
| Digit span | 63 | 19.03 | 3.69 | 0.05 | −0.73 |
| Information | 63 | 19.92 | 5.53 | −0.77 | −0.43 |
| Letter-number sequencing | 63 | 13.17 | 2.55 | −0.44 | −0.51 |
| COWAT | |||||
| Letters FAS | 63 | 39.84 | 12.08 | 0.27 | −0.71 |
| Animals | 63 | 25.83 | 6.32 | 0.20 | −0.15 |
Note: Of 103 healthy adults, 63 participants also completed neuropsychological tasks from the Wechsler Adult Intelligence Scale (WAIS-III) and Controlled Oral Word Association Test (COWAT). MWT-B, Mehrfachwahl-Wortschatz-Intelligenztest; SD, standard deviation.