Table 3.

Factorial analyses of SOMEDIS-A items.

SOMEDIS-A itema	Factor 1b	Factor 2b	Communalities
Item 1 EFA	0.17	0.75	0.60
CFA	–	0.73	–
Item 2 EFA	0.26	0.84	0.77
CFA	–	0.86	–
Item 3 EFA	0.59	0.43	0.54
CFA	0.84	–	–
Item 4 EFA	0.50	0.57	0.58
CFA	–	0.82	–
Item 5 EFA	0.53	0.56	0.59
CFA	–	0.83	–
Item 6 EFA	0.70	0.38	0.63
CFA	0.90	–	–
Item 7 EFA	0.64	0.30	0.50
CFA	0.74	–	–
Item 8 EFA	0.78	0.18	0.63
CFA	0.86	–	–
Item 9 EFA	0.82	0.19	0.71
CFA	0.90	–	–

SOMEDIS-A, Social Media Disorder Scale for Adolescents; EFA, Explanatory Factor Analysis (based on split-half sub-sample of n1 = 466 dyads); CFA, Confirmatory Factor Analysis (based on split-half sub-sample of n2 = 465 dyads), SOMEDIS-A factor 1 = negative consequences, SOMEDIS-A factor 2 = cognitive-behavioral symptoms;

^afor the description of the items, refer to Table 1.

^b(standardized) factor loadings are depicted.