Table 1.
Psychometric Statistics as a Function of Group
| Younger Adults |
Middle-Aged Adults |
Older Adults |
Very Mild AD |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M | N | SD | M | N | SD | M | N | SD | M | N | SD | |
| Variable/Task | ||||||||||||
| Age (years) | 20.23a | 30 | 1.01 | 58.08b | 217 | 7.35 | 75.92c | 219 | 5.90 | 75.15c | 104 | 7.74 |
| Education (years) | -- | -- | -- | 15.95a | 208 | 2.45 | 15.33b | 214 | 2.80 | 14.95b | 104 | 2.84 |
| Mini Mental State Exam | -- | -- | -- | 29.32a | 208 | 1.04 | 28.66b | 213 | 1.41 | 26.62c | 104 | 3.12 |
| Selective Reminding | -- | -- | -- | 32.68a | 208 | 5.84 | 29.28b | 214 | 5.64 | 20.46c | 96 | 9.00 |
| Animal Fluency | -- | -- | -- | 23.34a | 207 | 5.86 | 19.76b | 214 | 5.71 | 16.23c | 104 | 5.67 |
| Trail Making A | -- | -- | -- | 26.84a | 207 | 9.32 | 34.85b | 214 | 11.69 | 43.93c | 104 | 23.52 |
Note. Very Mild AD = CDR 0.5 status. Values within each row with different subscripts differ significantly (p < .05, two-tailed).