Polynomial Regression Spss. Select statistics from the options on the right of the text box. To run a polynomial regression model add the new variable agecent2 as shown in figure 4.
This type of regression involves fitting a dependent variable yi to a polynomial function of a single independent variable xi. Selecting polynomial regression from the analyze menu in spss. I would like to consider polynomials of degree higher than 3 and or include interactions between independent variables.
The regression model is as follows.
Select statistics from the options on the right of the text box. Select statistics from the options on the right of the text box. Please note that a polynomial regression analysis is a sequential analysis. The curvefit procedure found under analyze regression curve estimation offers linear quadratic and cubic curves but only for a single variable.