Table 1.
Means and standard deviations of participant demographics and results from cognitive and perceptual tests for Experiment 1.
| Experiment 1 | Younger | Older | ||
|---|---|---|---|---|
|
| ||||
| Variable | M | SD | M | SD |
| Age(years)1 | 20.75 | 0.62 | 75.67 | 5.07 |
| Years of Education | 15.08 | 0.67 | 14.92 | 1.88 |
| Log Contrast Sensitivity2 | 1.48 | 0.15 | 1.30 | 0.44 |
| LogMAR Acuity1 | 0.01 | 0.11 | 0.15 | 0.12 |
| Digit Span Forward | 12.25 | 1.91 | 10.50 | 2.43 |
| Digit Span Backwards1 | 8.83 | 2.62 | 6.83 | 1.90 |
| WAIS – Matrix Reasoning1 | 20.33 | 3.09 | 16.67 | 4.91 |
Note:
1
Differences between age groups were significant as indicated by a two-tailed t-test (p < 0.05).
2
Contrast sensitivity measured using the Pelli Robson Test (Pelli, Robson, & Wilkins, 1988).