can you tell if tfa interacts with msg which model should i use for interactive effect in spss which model should use for interactive effects within groups in spss? what model do I use to test the interactive effect of msg in spss why does tfa interact with msg which model should be chosen for interaction within the diet? what kind of model is msg+tfa which model to use for interactive effect within groups what model to use for interactive effects with group which model should be chosen for interactive effects within groups how does msg affect cholesterol in spss which model should be used for interactive effects within groups in spss? msg+tfa tfa tfa what is the interactive effect of msg+tfa on cholesterol levels is msg tfa interactive? what model should be used for interplay in a group? msg-tfa which model to choose for interactive effect which model is the interactive model? how to tell if msg interacts with tfa what is the interactive effect of spss what model should you use for interactive effect between groups