Table 6.
Hierarchical regression analysis regarding independent predictors of academic performance in high school male students.
| Dependent Variables | Independent Variables | β | Total r2 | p Value |
|---|---|---|---|---|
| ΔOverall average | ΔDaily servings of F/V | 0.50 | 0.248 | 0.000 |
| ΔScience | Age | 0.60 | 0.392 | 0.000 |
| ΔStudying time | 0.24 | 0.059 | 0.009 | |
| ΔMathematics | Age | −0.26 | 0.069 | 0.027 |
| ΔBedtime on WD | −0.45 | 0.202 | 0.000 | |
| ΔLanguage | ΔBreakfast on WE | −0.25 | 0.064 | 0.059 |
F/V: Fruits and vegetables, WD: Weekdays, WE: Weekend. Independent predictors included in the model varied between dependent variables based on significant correlations. None of the demographics variables (age, pubertal status and socioeconomic status) included in step 1 analysis remained in the final model for Δ in overall average and Δ in in language.