what is the difference between z and y what is x-z interrelationship difference between z2 and z3 how to interpret the interaction between categorical data when a glm interaction is significant, the main effect is x how do you interpret the difference between categorical and non categorical data what is the difference between a z3 and a x2 what is the correlation between x2 and z3 which condition indicates that x is having a different effect in z1 and z2? what is the correlation between x and z which is not significant in categorical terms which coefficient indicates the difference between x and z how to find the significance of a relationship between a categorical data set and a data set? x2:zz2 interaction why are the interaction between categorical data different? x2:zz2 interaction what is zz2 and zz3 what is the significance of the relationship between x and z3 how to interpret interaction between categorical data? how to interpret z2