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Line 37: <math>\gamma</math> 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. <math>\tau_{ij}</math> refers to the overall regression coefficient, or the slope, between the dependent variable and the Level 2 predictor. <math>u_{0jij}</math> refers to the random error component for the deviation of the intercept of a group from the overall intercept. <math>\delta</math> refers to the overall regression coefficient, or the slope, between the dependent variable and the Level 1 predictor. *<math>v_{ij}</math> refers to the error component for the slope (meaning the deviation of the group slopes from the overall slope).<ref name="Fidell" />

Multilevel model: Difference between revisions