Subtopics | Age | Mean | SD | df | t | p-value |
Concepts of comparison | < 4.5 | 2.11 | 1.641 | 38 | −1.537 | 0.133 |
> 4.5 | 3.00 | 1.952 | ||||
Classification | < 4.5 | 1.11 | 1.568 | 38 | −0.817 | 0.419 |
> 4.5 | 1.50 | 1.439 | ||||
One-to-one correspondence | < 4.5 | 1.61 | 1.290 | 38 | −2.770 | 0.009* |
> 4.5 | 2.77 | 1.343 | ||||
Seriation | < 4.5 | 0.83 | 0.857 | 38 | −0.207 | 0.837 |
> 4.5 | 0.91 | 1.342 | ||||
Piagetian subscale (relational skills) | < 4.5 | 5.66 | 4.588 | 38 | −1.655 | 0.106 |
> 4.5 | 8.18 | 4.934 | ||||
Using number words | < 4.5 | 0.72 | 1.018 | 38 | −0.266 | 0.792 |
> 4.5 | 0.82 | 1.220 | ||||
Structured counting | < 4.5 | 0.72 | 1.364 | 38 | −0.116 | 0.908 |
> 4.5 | 0.77 | 1.378 | ||||
Resultative counting | < 4.5 | 0.33 | 1.029 | 38 | −0.218 | 0.828 |
> 4.5 | 0.41 | 1.141 | ||||
Applying general knowledge of numbers in real-life situations | < 4.5 | 1.06 | 1.056 | 38 | −2.142 | 0.039* |
> 4.5 | 1.86 | 1.283 | ||||
Gelman subscale (counting skills) | < 4.5 | 2.83 | 3.869 | 38 | −0.815 | 0.420 |
> 4.5 | 3.86 | 4.062 |