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. 2021 Mar 2;18(5):2452. doi: 10.3390/ijerph18052452

Table 1.

Means, standard deviations, internal consistency measures and bivariate correlations (n = 240).

Measures M (SD) α/r 1 2 3 4 5
1. Social anxiety 2.45 (0.75) 0.891 1
2. Dispositional trust 4.17 (1.34) - −0.034 1
3. Smartphone use 3.54 (1.55) 0.572 −0.046 −0.030 1
4. Problematic smartphone use (PSU) 2.71 (0.85) 0.822 0.218 ** 0.101 0.329 *** 1
5. Gender a - 0.134 * −0.047 0.187 ** 0.121 1
6. Occupation a - 0.106 −0.083 −0.007 −0.045 0.095

* 0.05 level (2-tailed). ** 0.01 level (2-tailed). *** 0.001 (2-tailed). a point-biserial correlations between gender (1 = male, 2 = female) and current occupation (1 = non-students, 2 = students) and other variables are point-biserial.