when should i include interaction in regression model when should interactions be included why would you include interaction coefficient for regression when predicting y, should interaction coefficients be considered does the interaction coefficient have to be included in the analysis of a regression? should interaction coefficients be included in a regression model why would you include an interaction in a model if your data was not significant when incorporating interaction coefficient in regression model if it is not significant which type of correlation can be included in a regression model do interaction coefficients in regression models have to be included when do i include a factor in regression equation when incorporating interaction coefficient in regression model should interaction coefficients be included in the regression model which factor z is not involved in a regression? when using regression how do you include interaction why do regression model include interaction why are interaction coefficients in regression models used which factor should not be included in a regression why do you include interaction coefficients in regression models what model would include interaction