A debate has arisen about the value of using checkboxes vs. yes/no questions. A checkbox is a yes/no question, essentially. But imagine a set of questions about what you do, for example, sports activities. Is it better to have "Do you swim? - Yes No" (using radio buttons for yes and no), "Do you bicycle? - Yes No", etc., etc., or "What sports activities do you do:" followed by Swim, bicycle, etc., with checkboxes next to them.
I am asking because I recall that research has been done, though I can't locate it, on difficulties with answering yes/no questions.