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Table 4 Results of Bayesian multilevel regression analyses

From: A three-wave longitudinal study on the relation between commuting strain and somatic symptoms in university students: exploring the role of learning-family conflicts

  Mediator: Learning-family conflict Outcome: Somatic symptoms
Est l-95% CI u-95% CI Est l-95% CI u-95% CI
Within-level       
Intercept 0.02  − 0.21 0.30 0.01  − 0.06 0.07
Commuting strain1       
b  − 0.05  − 0.52 0.34  − 0.03  − 0.17 0.09
simo[1] 0.28 0.01 0.74 0.25 0.01 0.72
simo[2] 0.23 0.01 0.67 0.20 0.01 0.65
simo[3] 0.21 0.01 0.63 0.20 0.01 0.63
simo[4] 0.29 0.01 0.75 0.35 0.01 0.82
Learning-family conflict     0.01  − 0.02 0.04
Between-level       
Intercept 2.14 1.16 3.12 1.18 0.95 1.41
Age 0.06 0.02 0.11  − 0.01  − 0.02  − 0.00
Sex2  − 0.53  − 0.88  − 0.18  − 0.12  − 0.20  − 0.04
Commuting distance 0.06  − 0.22 0.33 0.03  − 0.02 0.09
Commuting time  − 0.07  − 0.35 0.22  − 0.05  − 0.11 0.01
Commuting strain       
b 0.85 0.21 1.49 0.13 0.02 0.24
simo[1] 0.20 0.01 0.58 0.49 0.07 0.89
simo[2] 0.20 0.01 0.65 0.27 0.01 0.72
simo[3] 0.60 0.10 0.92 0.24 0.01 0.68
Learning-family conflict     0.16 0.12 0.20
R2 within3 .00 .00 .02 .01 .00 .03
R2 between3 .19 .09 .30 .48 .39 .56
  1. NWithin = 339; NBetween = 128. Est. = Estimate; l-95% CI = lower bound of a 95% credible interval; u-95% CI = upper bound of a 95% credible interval
  2. 1The b coefficient can be interpreted as the average change in the dependent variable when the ordinal predictor commuting strain increases from one category to the next higher category (analogous to the common interpretation of regression coefficients; see Bürkner & Charpentier, 2018). 2Sex coded as 1 = female and 0 = male. 3Bayesian R2 as proposed by 55 [55]