Maartje Boer

SMU AND WELLBEING ACROSS COUNTRIES 111 4 Figure 4.1 Analytical Model Notes. SMU = social media use; FAS = family affluence; Subscripts i and j denote individuals (i) in countries ( j); Black circles denote random slopes (S1 and S2); Black square denotes random intercept; White squares denote observed variables; White circles denote latent variables; Grey arrows denote estimates that were added for control purposes. The analytical model was applied to all six wellbeing measures. Information Criterion (BIC) and Akaike Information Criterion (AIC), where lower values indicated better model fit (Burnham & Anderson, 2004). Further, associations were interpreted using their 95% prediction intervals (PIs) (Hox, 2010d), which indicate the estimated range of the associations across countries. Cross-level interactions were evaluated on their explained variance (Hox, 2010c). All continuous study variables were mean-centered to facilitate interpretation of the cross-level interactions (Hox, 2010c).