Thanks Paul. Just want to confirm something re the random-intercept term. The point of adding this term is to soak up the between-subject variance. In other words, if we didn’t add this term, the model would still run, but the p-value would be much larger. The addition of the random-intercept term is not related to the fact that each participant is measured multiple times (in violation of the assumption of independence of observations). I’m asking because I think you said both of the above: we add the random-intercept term (1) to account for the fact that the participants will differ from each other in their responses to the predictor variable, and/or (2) because each participant is measured multiple times.
Hello, is this mixed one-way anova or mixed two-way anova? Can anyone tell me if a two-way mixed factor anova is different from two-way repeated measures anova? Thanks
A mixed ANOVA has a repeated measures IV and a between subjects (independent group) IV. Mixed designs need both so you cannot have a one way mixed ANOVA
@@DrPC_statistics_guidesThanks! I need to run a ‘two-way mixed factor ANOVA’, my Independent IV is group and dependent IV is time. Dependent variable is glucose concentration. I’m basically comparing glucose concentration at different time point between three groups. My supervisor only said run a mixed factor two way ANOVA but I haven’t done it before 😭 If I go to Analysis > General Linear Model > Repeated measures, is that the same as what mixed factor two way ANOVA? I did not find a specific option with the specific name in ANOVA and most tutorials point to repeated measures when talking about mixed two way ANOVA. Also what is IV? Does it mean instrumental variable?
