If you're going to exclude bad faith answers, I think you should exclude all of them. But I don't think you can do that. Is HTHTHTHTHT a bad faith answer? Alway

If you're going to exclude bad faith answers, I think you should exclude all of them. But I don't think you can do that. Is HTHTHTHTHT a bad faith answer? Always or only sometimes? We're trying to infer the test subject's intent from their answer, and that's fundamentally impossible I think. I think including all answers is a solid approach. If test subjects have bad faith, I think that can be filed under 'less random'. If old test subjects show more bad faith, I think it's not really wrong to say older people are less random. And it does have predictive power. Arbitrarily (because they is no way to do it subjectively) excluding some answers and not others has, I think, a greater risk of skewing the results.