| Number of sample | 67 | 60 | 60 |
| Age: mean (yr) | 31.9 | 36.9 | 43 |
| Total schooling: mean (yr) | 14.5 | 14.3 | 44 |
| Sex: males / females (% total) | 88 / 12 | 37 / 63 | 99 / 0 |
| Student (% total) | 0 | 16 | 0 |
| Working (% total) | 100 | 63 | 89 |
| Unemployed or not working (% total) | 0 | 6 | 0 |
| Retired (% total) | 0 | 3 | 0 |
| Married (% of total) | 48 | 53 | 50 |
| Parent (% of total) | 42 | 49 | 52 |
| Korean as native language (% total) | 100 | - | - |
| Self-identification (% responding) | | | |
| Multilingual | 4.5 | 52.9 | 9 |
| Stuttering | 0.0 | 0.3 | 0 |
| Mentally ill | 0.0 | 1.2 | 0 |
| Obese | 6.0 | 6.7 | 48 |
| Left handed | 7.5 | 7.7 | 45 |
| Intelligent | 3.0 | 26.0 | 2 |
| No persons known (% responding) | | | |
| Stuttering | 52.2 | 29.9 | 93 |
| Mentally ill | 41.8 | 26.4 | 74 |
| Obese | 13.4 | 8.1 | 71 |
| Left handed | 7.5 | 6.6 | 69 |
| Intelligent | 7.5 | 2.1 | 86 |
| Self-ratings for health and ability (mean: –100 to +100) | | | |
| Physical health | 39 | 42 | 30 |
| Mental health | 46 | 55 | 27 |
| Ability to learn | 46 | 57 | 19 |
| Speaking ability | 36 | 62 | 7 |
| Self-ratings for life priorities (mean: –100 to +100) | | | |
| Be safe / secure | 72 | 82 | 19 |
| Be free | 62 | 64 | 33 |
| Spend time alone | 46 | 39 | 61 |
| Attend social events | 34 | 11 | 85 |
| Imagine new things | 43 | 33 | 69 |
| Help less fortunate | 53 | 53 | 55 |
| Have exciting by potentially dangerous experiences | 2 | –16 | 76 |
| Practice my religion | –15 | 26 | 21 |
| Earn money | 68 | 60 | 75 |
| Do job / duty | 61 | 76 | 14 |
| Get things done | 67 | 76 | 28 |
| Solve big problems | 69 | 72 | 41 |
| Completion time: mean (min) | 16.8 | 11.0 | 85 |