Level 2 Regression Equation
The dependent variables are the intercepts and the slopes for the independent variables at Level 1 in the groups of Level 2.
β0j = γ00 + γ01Wj +u0j
β1j = γ10 + u1j
- γ00 refers to the overall intercept. This is the grand mean of the scores on the dependent variable across all the groups when all the predictors are equal to 0.
- Wj refers to the Level 2 predictor.
- γ01 refers to the overall regression coefficient, or the slope, between the dependent variable and the Level 2 predictor.
- u0j refers to the random error component for the deviation of the intercept of a group from the overall intercept.
- γ10 refers to the overall regression coefficient, or the slope, between the dependent variable and the Level 1 predictor.
- u1j refers to the error component for the slope (meaning the deviation of the group slopes from the overall slope).
Read more about this topic: Multilevel Model
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