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International Journal of STEM Education

Table 1 Descriptive statistics and correlations between SES and mathematics test scores

From: Internet use at and outside of school in relation to low- and high-stakes mathematics test scores across 3 years

Mathematics scores

Descriptive statistics

Correlations

 

N

M

SD

1

2

3

1. SES

4113

0.11

0.75

   

2. PISA 2015 mathx

4113

529.98

78.51

.305a

  

3. 9th-Grade math

3758

65.06

23.35

.245b

.557b

 

4. 12th-Grade “wide”

1612

57.18

28.01

.169c

.482c

.618e

5. 12th-Grade “narrow”

1174

41.37

24.40

.162d

.438d

.586f

  1. Notes: Pearson correlation coefficients are displayed for SES and 9th- and 12th-grade mathematics scores. All correlation coefficients are statistically significant, p < .001. For pairwise comparisons: a N = 4113; b N = 3758; c N = 1612; d N = 1174; e N = 1470; f N = 1069. x For PISA mathematics scores, we used the estimates obtained across ten plausible values by following the OECD (2018) guidelines.
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