Table 3.
Mean Reaction Times (ms) and Error Rates (%) for Experiment 2
|
M, by display sizea |
SD, by display sizea |
|||||
|---|---|---|---|---|---|---|
| Variable | 2 | 4 | 6 | 2 | 4 | 6 |
| Younger adults | ||||||
| RT | ||||||
| Incompatible | 870 | 994 | 1,060 | 156 | 177 | 167 |
| Compatible | 863 | 970 | 1,017 | 158 | 182 | 165 |
| Neutral | 808 | 913 | 1,041 | 133 | 158 | 154 |
| Errors | ||||||
| Incompatible | 2.1 | 6.4 | 10.6 | 2.5 | 4.7 | 5.7 |
| Compatible | 2.3 | 5.0 | 7.6 | 2.4 | 4.7 | 4.9 |
| Neutral | 1.5 | 3.4 | 8.7 | 2.0 | 3.0 | 5.6 |
| Older adults | ||||||
| RT | ||||||
| Incompatible | 1,027 | 1,185 | 1,236 | 158 | 189 | 178 |
| Compatible | 1,020 | 1,138 | 1,224 | 172 | 172 | 149 |
| Neutral | 945 | 1,123 | 1,253 | 164 | 178 | 165 |
| Errors | ||||||
| Incompatible | 2.5 | 7.8 | 9.8 | 3.0 | 5.7 | 5.5 |
| Compatible | 3.4 | 7.2 | 10.4 | 2.7 | 5.3 | 5.1 |
| Neutral | 2.0 | 4.6 | 10.0 | 2.3 | 3.4 | 6.3 |
Note. RT reaction time.
a
Display Sizes 2, 4, and 6 indicate two, four, and six relevant items in display, respectively.