I have test subjects answering questions, the data will be quantitative. The questions can be divided to four categories by two factors that have two levels. For each question a factor A, B, A and B or none are "active". So each subject answers one of these four questions.
I am interested in how the factors A and B affect the answer.
So, this is resembles 2x2 factorial experiment, BUT the data are "paired", in the sense that each subject has answered all of the four questions.
Do you have suggestions for statistical tests I can use? Do you know how situations like this has been dealt with before?
EDIT: I found out that "repeated measures design" might be relevant.