1

2

3

4

5

6

7

8

9

10

Concepts of comparison (1)

1

0.740**

0.393*

0.582**

A

0.378*

0.523**

0.223

0.524*

0.596**

Classification (2)

1

0.507**

0.548**

A

0.544**

0.725**

0.521**

0.531**

0.732**

One-to-one correspondence (3)

1

0.369*

A

0.669**

0.535**

0.401*

0.515**

0.658**

Seriation (4)

1

A

0.590**

0.6002

0.249

0.331*

0.565**

Piagetian subscale (relational skills) (5)

1

0.601**

0.685**

0.380*

0.600**

0.774**

Using number words (6)

1

0.773**

0.515**

0.260

A

Structured counting (7)

1

0.590**

0.289

A

Resultative counting (8)

1

0.320*

A

Applying general knowledge of numbers in real-life situations (9)

1

A

Gelman subscale (counting skills) (10)

1