Table 7.
Means and standard deviations for Monkey game scores per age group
| Mean Proportion Correct Score | Absolute Score | ||
|---|---|---|---|
| Age | n | M (SD) | M (SD) |
| 6 years | 388 | .38 (.16) | 27.0 (12.1) |
| 7 years | 692 | .43 (.16) | 30.7 (11.7) |
| 8 years | 645 | .49 (.15) | 35.5 (11.5) |
| 9 years | 662 | .54 (.14) | 39.8 (11.4) |
| 10 years | 700 | .58 (.13) | 42.6 (10.6) |
| 11 years | 650 | .60 (.14) | 44.5 (11.6) |
| 12 yearsa | 377 | .60 (.14) | 45.2 (11.9) |
| 13 yearsa | 32 | .56 (.14) | 41.6 (10.7) |
aDue to the age requirements for school enrollment, students usually leave primary school between 11;6 and 12;6 years of age. The 12-year-old group would thus primarily consists of students with a delayed start and students with a longer educational pathway. The 13-year-old group would consist of students who repeated a class. As a result, the data presented here will be less representative for those particular age groups