Test for significant change from a menu of choices over time.
June 16, 2014 1:54 PM Subscribe
A large group of people are asked to choose exactly one option
out of 8 options, A B C D E F G H. A year later this is repeated. How to test for significance?
posted by 92_elements to Science & Nature (14 answers total) 1 user marked this as a favorite
As the response rate is (>90%), say size m at first and size n on the repeat.
Assume that I am testing for significant change (either up or down) for each of the options A B C D E F G and H, at the 95% level.
If it matters then the options are independent of each other, and have no order.
What's the appropriate test to apply in this situation? t-test?
It's been a while since I've looked at statistics. So if you point me towards a worked example that would be most appreciated.