if you run multiple test for genotype and age, how many levels should the within-subjects factor be how many in a mixed model how many levels are required in a mixed model how to run a mixed model of the sps experiment how do you calculate the difference between a drug and its effect on the genotype? how many levels of incubation drug how many levels do i need for the within subjects factor if you compare one drug a and the other how many levels for each drug test how many levels of a spirulina mixed model can spss test with four levels can a mixed model of a drug be repeated multiple times can two sex levels be included in the within subjects factor for repeated measures? how many within subjects test in a mixed model how to find differences between drugs in mixed model how many level are in the within subjects factor how many test levels is needed for a mixed model how many within subjects are allowed in a mixed model? if a mixed model is run with four levels in each test, is a normal answer true or false? how does a mixed model of genotype and age work? how many level for genotype and age in mixed model