Interesting testing approach by YouTube allowing website visitors to opt into and explaining test
I just came across this interesting new testing approach on the YouTube home page that allows website visitors to opt into a test and also explains what's being tested instead of just randomly allocating people into test groups using the standard a/b/n approach.
Giving choice to people is usually a good thing but in a testing situation that's kind of new and I'm not sure how I feel about this, what are your thoughts? Using an opt-in approach and explaining the test should generate more buy-in and maybe even unprompted feedback but I wonder what the non-random allocation of test subjects does to the significance of the test results.
