Table 1
Distribution of the number of participants according to age group (young vs older adults), gender (males vs females), and education level (highest diploma obtained).
| Age group | Highest diploma obtained | ||||||
|---|---|---|---|---|---|---|---|
| No diploma | Primary education | Secondary education | University college (short) | University college (long) | University | PhD | |
| Males | |||||||
| Young | 2 | 5 | 75 | 43 | 24 | 48 | 15 |
| Older | 7 | 19 | 196 | 140 | 114 | 124 | 20 |
| Females | |||||||
| Young | 6 | 15 | 168 | 165 | 91 | 116 | 11 |
| Older | 1 | 33 | 147 | 165 | 78 | 38 | 2 |
Table 2
Posterior distribution of the mean threshold difference between young and older adults, separated for Male, Female, and Female data that were Equated for Education level. Reliable group differences are set in bold.
| Category | Male | Female | Female Education Equated | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Pct 2.5 | Pct 50 | Pct 97.5 | Pct 2.5 | Pct 50 | Pct 97.5 | Pct 2.5 | Pct 50 | Pct 97.5 | |
| FISH | –0.66 | –0.34 | –0.06 | –0.70 | –0.44 | –0.17 | –0.57 | –0.28 | –0.01 |
| INSECTS | –0.30 | –0.09 | 0.14 | –0.09 | 0.16 | 0.37 | –0.13 | 0.13 | 0.35 |
| FURNITURE | –0.60 | –0.28 | 0.02 | –0.41 | –0.06 | 0.25 | –0.27 | 0.06 | 0.41 |
| TOOLS | –0.53 | –0.26 | 0.06 | –0.58 | –0.35 | –0.08 | –0.61 | –0.31 | 0.03 |
| FRUIT | –0.43 | –0.14 | 0.10 | –0.56 | –0.37 | –0.13 | –0.52 | –0.21 | 0.01 |
| VEGETABLES | –0.66 | –0.42 | –0.17 | –0.63 | –0.46 | –0.28 | –0.62 | –0.45 | –0.27 |
| SCIENCES | –0.28 | –0.02 | 0.26 | –0.14 | 0.06 | 0.26 | –0.28 | –0.06 | 0.15 |
| SPORTS | –0.22 | 0.02 | 0.23 | –0.32 | –0.13 | 0.06 | –0.33 | –0.14 | 0.06 |
Table 3
Number of items functioning differently in young and older adults for the Male, Female, and Female Education Equated data, divided according to whether they are more often endorsed by the young or the older adults.
| Category | Male | Female | Female Education Equated | |||
|---|---|---|---|---|---|---|
| Young | Older | Young | Older | Young | Older | |
| FISH | 1 | 1 | 2 | 1 | 2 | 2 |
| INSECTS | 1 | 2 | 2 | 5 | 2 | 4 |
| FURNITURE | 1 | 1 | 4 | 2 | 2 | 2 |
| TOOLS | 2 | 1 | 0 | 3 | 1 | 3 |
| FRUIT | 2 | 3 | 2 | 1 | 1 | 4 |
| VEGETABLES | 0 | 1 | 1 | 1 | 1 | 0 |
| SCIENCES | 0 | 1 | 0 | 0 | 0 | 0 |
| SPORTS | 0 | 1 | 2 | 0 | 2 | 0 |
| Total | 7 | 11 | 13 | 13 | 11 | 15 |
Figure 1
Categorization proportions for SCIENCES (left), INSECTS (middle), and FISH (right) of the young (black circles) and the older adults (gray squares) in the Female Education Equated group. Items are ordered along the horizontal axis according to their categorization rank in the young group. Arrows indicate items that function differently in the young and older adults.