View the coefficient and diagnostic tables. Creating the coefficient and diagnostic tables is optional. While you are in the process of finding an effective model, you may elect not to create these tables. The model building process is iterative and you will likely try a large number of different models (different explanatory variables) until you settle on a few good ones. You can use the Aiaike Information Criterion (AIC) on the report to compare different models. The model with the smaller AIC value is the better model (that is, taking into account model complexity, the model with the smaller AIC provides a better fit to the observed data). You should always create the coefficient and diagnostic tables for your final OLS models in order to capture the most important elements of the OLS report including the list of explanatory variables used in the model with their coefficients, standard errors, and probabilities, and results for each diagnostic test. The diagnostic table includes a description of each test along with some guidelines for how to interpret test results.