Table 5.
Hierarchical regression analysis for self-concept predicting symptoms of depression and anxiety
| Variable | Model 1 | Model 2 | ||||||
|---|---|---|---|---|---|---|---|---|
| B | SE | t | p | B | SE | t | p | |
| Depression | ||||||||
| Intercept | 27.732 | 1.236 | 22.440 | < .001 | 58.053 | 1.840 | 31.553 | < .001 |
| Age | 0.066 | 0.070 | 0.932 | .352 | − 0.123 | 0.064 | − 1.923 | .055 |
| Sex | 3.624 | 0.426 | 8.503 | < .001 | 2.510 | 0.387 | 6.486 | < .001 |
| SES-medium | − 0.936 | 0.750 | − 1.247 | .213 | − 0.549 | 0.675 | − 0.813 | .416 |
| SES-high | − 1.983 | 0.772 | − 2.569 | .010 | − 1.148 | 0.695 | − 1.652 | .099 |
| SES-highest | − 2.432 | 0.772 | − 3.149 | .002 | − 1.147 | 0.697 | − 1.646 | .100 |
| Self-concept | − 0.477 | 0.023 | − 20.677 | < .001*** | ||||
| ΔR2 | R2 = .046, F(5, 1800) = 17.27, p < .001 | ΔR2 = .183, F(1, 1799) = 427.53, p < .001 | ||||||
| Anxiety | ||||||||
| Intercept | 33.395 | 1.246 | 26.805 | < .001 | 51.399 | 1.994 | 25.784 | < .001 |
| Age | − 0.010 | 0.071 | − 0.139 | .890 | − 0.122 | 0.069 | − 1.758 | .079 |
| Sex | 3.846 | 0.430 | 8.951 | < .001 | 3.185 | 0.419 | 7.594 | < .001 |
| SES-medium | − 0.438 | 0.756 | − 0.579 | .563 | − 0.210 | 0.731 | − 0.285 | .776 |
| SES-high | − 1.679 | 0.778 | − 2.158 | .031 | − 1.183 | 0.753 | − 1.571 | .116 |
| SES-highest | − 2.638 | 0.778 | − 3.390 | < .001 | − 1.876 | 0.755 | − 2.484 | .013 |
| Self-concept | − 0.283 | 0.025 | − 11.332 | < .001*** | ||||
| ΔR2 | R2 = .053, F(5, 1800) = 20.01, p < .001 | ΔR2 = .063, F(1, 1799) = 128.4, p < .001 | ||||||
B, unstandardized regression coefficient. SE, standard error of B. Sex, 1 = female, 0 = male. t, t-value. p, p-values for t-tests on regression coefficient and intercept. SES, parental socio-economic status. R2 and F-tests for differences to intercept-only models. Uncorrected p-values for estimates reflecting study hypotheses in bold, alpha-error corrected thresholds applied to indicate significance at ***p > .001, **p > .01, *p > .05