TABLE 1.
Descriptive statistics for Raven’s Advanced Progressive Matrices (RAPMs).
| M1 | M2 | M3 | M4 | M5 | M6 | M7 | M8 | Training | M9 | M10 | M11 | M12 | Test | RAPMs | |
| M | 0.939 | 0.924 | 0.923 | 0.892 | 0.884 | 0.875 | 0.828 | 0.723 | 0.873 | 0.620 | 0.607 | 0.489 | 0.314 | 0.507 | 0.751 |
| Median | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1.000 | 1 | 1 | 0 | 0 | 0.500 | 0.833 |
| Mode | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1.000 | 1 | 1 | 0 | 0 | 0.500 | 0.833 |
| SD | 0.240 | 0.265 | 0.267 | 0.311 | 0.321 | 0.331 | 0.378 | 0.448 | 0.205 | 0.486 | 0.489 | 0.500 | 0.464 | 0.294 | 0.200 |
| Skewness (SE = 0.066) | –3.670 | –3.209 | –3.170 | –2.526 | –2.397 | –2.269 | –1.738 | –0.995 | –2.470 | –0.493 | –0.439 | 0.046 | 0.801 | –0.065 | –1.516 |
| Kurtosis (SE = 0.133) | 11.485 | 8.311 | 8.061 | 4.387 | 3.751 | 3.153 | 1.024 | –1.011 | 6.632 | –1.759 | –1.810 | –2.001 | –1.360 | –0.818 | 2.824 |
| Minimum | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.000 | 0 | 0 | 0 | 0 | 0.000 | 0.000 |
| Maximum | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1.000 | 1 | 1 | 1 | 1 | 1.000 | 1.000 |
| % correct response | 93.893 | 92.421 | 92.274 | 89.183 | 88.374 | 87.491 | 82.781 | 72.259 | 87.334 | 61.957 | 60.706 | 48.859 | 31.420 | 50.736 | 75.135 |
N = 1,359 (no missing values). Mean scores fall between 0 and 1. M1–M12: matrices 1–12; Training, RAPMs training section; Test, RAPMs test section; M, mean; SD, standard deviation; SE, standard error.