Are fixed blocking variables the same thing as a categorical variable, just that they don't appear in the prediction profiler?
Hello, I have been analyzing data for an experiment measuring growth of human cells with 3 factors: 2 of which are independent variables that were controlled for, and the 3rd variable being the donor that the human cells came from (of which there are two). I have an n = 8, and the design was a 2^3 factorial. However, I'm currently finding that there are 3 ways to approach analysis of the data with...