I ran 3 experiments comparing in each 2 techniques. In each experiment participants had simply to express a preference about which of the 2 techniques they thought was clearest to understand.
30 participants were involved, 10 in each experiment. No repeated measures were involved.
Now I have a table of the results like so:
Technique 1 Technique 2 EXP1: 80% 20% EXP2: 90% 10% EXP3: 60% 40%
I want to know if globally technique 1 is statistically significantly better than technique 2.
- Which analysis should I perform?
- How could this be done in R?