I believe these results are from Turkers at TurkerNational (paging Kristy?). I like the word ‘require’ better than ‘force’ though. There would have to be some clear guidelines–is it the median or mean time spent taking the survey? As recorded by AMT (nooooo) or by the Qualtrics clock? How would that time be measured–in a pre-test? But these things are all manageable issues that should lead to a fine resolution. Let’s see what happens.