Table 2.
Impact of demographic characteristics on cognitive performance
| Age (years) | Sex | Education (years) | |||||
|---|---|---|---|---|---|---|---|
| Episodic memory (EM) | F | p | F | p | F | p | |
| TPR | 11.09 | <.01 | 3.10 | .08 | 14.42 | <.01 | |
| TFR | 31.54 | <.01 | 4.22 | .04 | 9.02 | <.01 | |
| TDPR | 10.15 | <.01 | 4.92 | .03 | 15.14 | <.01 | |
| TDFR | 35.96 | <.01 | 5.11 | .02 | 12.98 | <.01 | |
| Executive functions (EFs) | |||||||
| Coding | 107.9 | <.01 | 0.80 | .37 | 71.58 | <.01 | |
| DSF | 3.46 | .06 | 22.60 | <.01 | 19.91 | <.01 | |
| DSB | 22.84 | .01 | 14.94 | <.01 | 26.89 | <.01 | |
| DSS | 12.77 | <.01 | 16.19 | <.01 | 31.73 | <.01 | |
| Matrix reasoning | 47.17 | <.01 | 6.06 | .01 | 80.15 | <.01 | |
| Visual puzzles | 32.44 | <.01 | 38.52 | <.01 | 39.81 | <.01 | |
| Similarities | 9.31 | <.01 | 10.95 | <.01 | 101.3 | <.01 | |
TPR = total paired recall; TFR = total free recall; TDPR = total delayed paired recall; TDFR = total delayed free recall; DSF = digit span forward; DSB = digit span backwards; DSS = digit span sequencing.