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An IERI – International Educational Research Institute Journal

Table 12 Descriptive analysis of the indicators in their original metrics for Sweden

From: Exploring the relationship between process data and contextual variables among Scandinavian students on PISA 2012 mathematics tasks

Variable

Mean

SD

Min

Max

Skew

Kurtosis

Accuracy 1

0.6

0.49

0

1

− 0.39

− 1.85

Accuracy 2

0.12

0.42

0

2

3.6

12.1

Accuracy 3

0.5

0.72

0

2

1.07

− 0.3

Response time 1 (min)

1.3

0.78

0.07

4.76

1.43

2.6

Response time 2 (min)

1.67

1.18

0.05

8.62

1.85

5.86

Response time 3 (min)

1.67

1.09

0.05

6.83

1.1

1.9

Frequency of action 1

2.6

5.59

0

73

7.35

75.12

Frequency of action 2

5.41

11.76

0

77

3.19

11.18

Frequency of action 3

24.91

45.97

0

286

2.16

4.59

ICT availability at home

0.16

0.83

− 2.79

2.78

0.73

1.25

ICT availability at school

0.35

0.77

− 2.8

2.83

− 0.16

1.76

ICT use at home for school-related tasks

0.04

1

− 2.44

3.73

0.71

3.35

Use of ICT in mathematics lessons

− 0.23

0.9

− 0.77

2.8

1.58

1.7

Use of ICT at school

0.45

0.76

− 1.61

4.11

0.4

2.5

Experience with applied mathematics tasks at school

0.46

0.98

− 2.06

3.2

1.18

1.86

Experience with pure mathematics tasks at school

− 0.11

0.95

− 2.73

0.8

− 0.86

0.18

Economic, social, and cultural status

0.25

0.83

− 2.71

2.26

− 0.53

0.2