Question for the group: How might one go about modeling experimental data with twin respondents?
I ran a single-factor survey experiment with a small group of twin respondents (MZs and DZs, mainly same sex). There were two conditions. I randomly assigned twins to receive either:
Conditions A A
Conditions B B
Or
Conditions A B (or B A)
I'd of course like to decompose variance in responses to the treatment, but I also have to account for condition. How would you model these data? Any suggestions would be greatly appreciated. Thank you in advance. -Chance