Descriptive Statistics of Correct Answers

Subtopics

M

SD

Minimum/Maximum

Skewness

Kurtosis

Concepts of comparison

2.60

1.851

0/5

0.380

−1.500

Classification

1.32

1.492

0/5

1.066

0.290

One-to-one correspondence

2.25

1.428

0/5

0.424

−0.955

Seriation

0.87

1.137

0/4

1.250

0.990

Piagetian subscale (relational skills)

7.05

4.888

0/18

0.829

0.093

Using number words

0.77

1.121

0/3

1.161

−0.164

Structured counting

0.75

1.354

0/5

1.982

3.386

Resultative counting

0.37

1.079

0/5

3.309

11.009

Applying general knowledge of numbers in real-life situations

1.50

1.240

0/4

0.636

−0.421

Gelman subscale (counting skills)

3.40

3.960

0/16

2.000

3.777