Appendix B.

Correlations among problematic screen use and screen time

		1	2	3	4	5	6	7	8	9	10	11
1	Video Game Addiction Questionnaire Score	–
2	Social Media Addiction Questionnaire Score	0.44	–
3	Mobile Phone Involvement Questionnaire Score	0.34	0.59	–
4	Total recreational screen time	0.31	0.3	0.36	–
5	Television or videos	0.11	0.13	0.17	0.59	–
6	Videos	0.25	0.17	0.22	0.66	0.34	–
7	Single-player video games	0.32	0.13	0.14	0.62	0.34	0.42	–
8	Multi-player video games	0.38	0.11	0.14	0.62	0.28	0.44	0.52	–
9	Texting	0.04	0.21	0.25	0.53	0.32	0.29	0.25	0.19	–
10	Social media	0.03	0.33	0.30	0.54	0.32	0.29	0.23	0.18	0.63	–
11	Video chat	0.05	0.18	0.20	0.46	0.26	0.25	0.24	0.22	0.49	0.48	–
12	Browsing the internet	0.14	0.16	0.15	0.42	0.27	0.32	0.26	0.22	0.27	0.24	0.20

All p < 0.001.