which test is used to find an interaction term in a model? dunbin watson test definition OLS why is a durbin-watson test useful durbin watson test for first order autocorrelation how many variables to test for correlation how to test first order for interdependence how is durun watson test used in regression durbin watson test definition watson-durbin test definition what is the durbin-watson test for first order autocorrelation when do i use durbin-watson test what does durbin-watson test when to perform durbin-watson test how to use durbin-watson test on first order correlation what is the durbin-watson test for is durbin-watson test positive for first-order autocorrelation how to use durbin watson test how to perform durbin-watson test for first order autocorrelation with interaction term of constant when performing the durbin-watson test, how to find the critical value on a multiple regression model which type of correlation can be performed by a durbin-watson