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random slopes |
level 2 equation |
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The dependent variables are the intercepts and the slopes for the independent variables at Level 1 in the groups of Level 2.
<math>\beta_{0j} = \gamma_{00}
<math>\beta_{1j} = \gamma_{10} + W_j\gamma_{01} +u_{1j}</math>
*<math>\gamma_{00}</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.
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*<math>u_{0j}</math> refers to the random error component for the deviation of the intercept of a group from the overall intercept.
*<math>\gamma_{10}</math> refers to the overall regression coefficient, or the slope, between the dependent variable and the Level 1 predictor.
*<math>u_{1j}</math> refers to the error component for the slope (meaning the deviation of the group slopes from the overall slope).<ref name="Fidell" />
==Types of models==
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