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Fitting a Model

ADX uses the MIXED procedure to estimate the fixed and random effects and variance components of the model.

After specifying the model, you will see the Fit Details for MPS window. There are three tabs:

• The Fixed Effects tab is similar to the Effects Selector for other designs. The table lists Type 3 tests of the fixed effects. Click an effect to toggle the selection of significant effects.
  
  

  
  
  

• The Variance Components tab provides estimates of the variance of each random effect, including the residual error. The approximate confidence limits for variance components can be calculated easily from this information.
  
  

  
  
  

• The Random Effects tab lists the random effects broken down by level (for interactions, these are broken down by each combination of levels). These are empirical best linear unbiased predictors (EBLUPs) of the observed random effects. You can use them to screen for unusual whole plots and to assess the normality assumption of the model.