Maartje Boer

CHAPTER 7 224 Table A7.2 Results Multinomial Regression, Membership Class 1 (n = 1,419) Class 1: variably high problematic SMU, variably high SMU frequency (ref. = class 4: persistently low problematic SMU, variably high SMU frequency) Model A Model B Model C Model D Model E (Figure 7.4) B SE OR B SE OR B SE OR B SE OR B SE OR Controls Girl (ref. = boy) 0.445* 0.192 1.560 0.376 0.213 1.457 1.190*** 0.257 3.288 0.643** 0.203 1.903 1.174*** 0.289 3.241 Pre-vocational education (ref. = pre- university) 1.319*** 0.340 3.741 1.256*** 0.337 3.511 1.501** 0.439 4.489 1.259*** 0.350 3.523 1.445** 0.433 4.250 Intermediate education (ref. = pre- university) 0.482 0.364 1.619 0.314 0.360 1.369 0.696 0.464 2.006 0.453 0.372 1.573 0.499 0.455 1.649 Immigrant background (ref. = non-immigrant) -0.002 0.225 0.998 0.071 0.239 1.074 0.112 0.264 1.120 -0.045 0.233 0.956 0.100 0.279 1.108 Subjective wellbeing Life satisfaction -1.530*** 0.298 0.218 -1.349*** 0.331 0.263 Self-esteem 0.098 0.331 1.115 0.638 0.441 1.940 Self-control Attention deficit 1.341*** 0.356 3.875 1.050** 0.399 2.914 Impulsivity 1.599*** 0.338 4.972 1.607*** 0.393 5.051 Social competencies Perceived friendship competence -1.296*** 0.328 0.276 -0.210 0.415 0.824 Notes. SMU = social media use; B = logit coefficient; SE = standard error; OR = Odds ratio. *** p < 0.001, ** p < 0.01, * p < 0.05.