Page 52 - Regression Guideline for AMC

SUMMARY
Key Ques:ons for Evalua:ng a Regression Model’s Usefulness and Accuracy
4: Were sta6s6cs such as R-­‐square and MAPE provided with the appraisal regression analysis as evidence of the adequacy and accuracy of the overall regression model? Do the provided sta6s6cs indicate the model provides a good fit to the data?
5: How many proper6es were examined in the regression analysis? Was there a minimum of at least 20 cases per each property characteris6c included in the regression model to avoid shrinkage and missing one or more property characteris6cs poten6ally important to property values in a given market? Was bivariate regression or some other screening technique used to iden6fy the property characteris6cs most likely associated with sales price before running the mul6variate regression model?
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