what is the purpose of glm function what type of glm to use for hierarchical regression what is interaction between categorical and continuous variables in spss what type of variables are associated with categorical and continuous variables what type of regression function is used in spss how do you do hierarchical regression on a continuous variable what is the difference between a continuous variable and categorical variable? spss what does sum of squares mean in excel spss glm interaction definition what are the two categories of continuous variables in spss which type of regression is performed with sum of squares in glm? how to select spss sum of squares which statement describes interaction between dependent and continuous variable of a product term how to do hierarchical regression in spss spss what type of model is the continuous variable in? which function is used to perform hierarchical regression? how to perform hierarchical linear regression in spss how to perform hierarchical regression in spss does spss use sum of squares? spss if glm is continuous