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Research suggests more up to 11 or so is better. So 7>5. (http://www.measuringu.com/blog/scale-points.php) but not by a large enough degree to matter too much. This research also I believe neglects the impact of seeing all these extra buttons on the screen when you have 20 7-point questions vs. 20 5-point questions; it could lead the testee to lose ...


At UXNZ 2015 one of the speakers that it doesn't matter, people are focussed on the questions and not on the amount of options. She has worked with surveys for over 15 years. There is a slight physiological difference between an even or odd number of options. An odd number of options gives you a 'safe haven' to go if you don't know or don't care. If there ...

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