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Max-Diff is an alternative to rating scales and seeks to solve the same problem that is solved by Ratings With Rankings To Split Ties.

A max-diff experiment presents respondents with a series of questions like the one shown below where the set of alternatives shown is varied from question-to-question so that it is possible to isolate the relative appeal of the different alternatives.

What is the MOST and LEAST important factor to you when you choose a car?

MOST                LEAST
	Price	        
	Top speed	
	Fuel economy	
	Emissions	
	Paint color	

For a detailed description of the design and analysis of max-diff experiments see Max-Diff on

It is sometimes described as a Choice Modeling method, as similar tools are used to create the experimental designs and to analyze the data.

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