Table 2.
Regression coefficients and standard errors from the mediation model
| Antecedent variable | Academic burnout (T1) | Thinness-oriented disordered eating (T1) | Muscularity-oriented disordered eating (T1) | Academic performance (T2) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| β | 95% CI | SE | β | 95% CI | SE | β | 95% CI | SE | β | 95% CI | SE | |
| Sex | 0.06 | −0.04–0.15 | 0.05 | 0.13 * | 0.05–0.23 | 0.04 | −0.11* | −0.21 – −0.01 | 0.05 | −0.03 | −0.17–0.11 | 0.07 |
| Age | 0.08 | −0.01–0.17 | 0.04 | −0.05 | −0.15–0.05 | 0.05 | 0.04 | −0.06–0.13 | 0.06 | −0.04 | −0.21–0.13 | 0.07 |
| BMI | 0.09 | −0.001–0.18 | 0.05 | 0.15** | 0.06–0.25 | 0.05 | 0.07 | −0.02–0.16 | 0.05 | −0.01 | −0.11–0.09 | 0.05 |
| Problematic TikTok Use (T1) | 0.18*** | 0.09–0.27 | 0.05 | 0.24*** | 0.14–0.35 | 0.05 | 0.24*** | 0.14–0.34 | 0.05 | −0.14** | −0.24 – −0.04 | 0.05 |
| Academic burnout (T1) | 0.15** | 0.05–0.25 | 0.05 | 0.15** | 0.05–0.24 | 0.05 | −0.19** | −0.30 – −0.09 | 0.05 | |||
|
Thinness-oriented disordered eating (T1) |
−0.15* | −0.27 – −0.03 | 0.06 | |||||||||
| Muscularity-oriented disordered eating (T1) | −0.13* | −0.24 – −0.02 | 0.06 | |||||||||
| R² | 0.12 | 0.12 | 0.11 | 0.2 | ||||||||
CI: confidence interval; SE: standard error; BMI: body mass index. * p < .05, ** p < .01, *** p < .001. T1, time 1; T2, time 2