Table 1. Characteristics of Participants in Experiment 1.
| Variable | Young adults (n = 20) |
Old adults (n = 20) |
|---|---|---|
| Sex: (women/men) | 80%/20% | 65%/35% |
| Age (in years) | 26.25 ± 8.27 | 63.26 ± 5.09 |
| Self-rated-healtha | ||
| Day of test | 4.15 ± 0.67 | 4.32 ± 0.75 |
| Over last 2 months | 3.85 ± 0.81 | 4.16 ± 0.67 |
| Percentage taking medication | 5% | 30% |
| Education (in years) | 14.05 ± 2.61 | 14.11 ± 3.48 |
| Word vocabulary test (MWT) | 29.85 ± 4.16 | 32.80 ± 2.55 |
| Digit substitution | 65.10 ± 9.72 | 46.30 ± 8.80 |
| Digit span | 14.20 ± 3.90 | 12.05 ± 2.35 |
| Stroop (in seconds) | 18.10 ± 3.74 | 39.30 ± 7.42 |
| PRMQb | ||
| Prospective | 18.20 ± 3.97 | 17.25 ± 3.02 |
| Retrospective | 18.65 ± 4.34 | 18.25 ± 2.69 |
Note. Unless specified otherwise, data are given in M ± 1 SD. MWT = Mehrfachwahl-Wortschatz-Test; PRMQ = Prospective and Retrospective Memory Questionnaire.
a
Self-rated health responses varied from 1 (poor) to 5 (excellent).
b
PRMQ subscale scores ranged from 8 (no memory errors) to 40 (very often memory errors).