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There seems to be plenty of research around this particular topic, and not surprisingly it has been covered in a number of different psychology and marketing research papers (just google "optimal number of choices in a Likert scale"). Unfortunately, it is not easy to decide on what is the optimal number of choices because there are a number of different ...


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I'm assuming this are items for sale, so, what does it mean a lot? You want to make a sale, and you should not save efforts in doing so. Plus, any info that helps you close the sale is always useful. Plus, based in your description, I think you don't have a lot of info, but you have some "noise". First of all: assuming these are items for sale as mentioned ...



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