MaxDiff is short for Maximum Difference Scaling, also known as Best-Worst Scaling. MaxDiff is a form of analysis where survey respondents are shown a subset of the possible items and are asked to indicate which two elements represent their perceptions of best and worst, or least and most important. By analyzing responses, an entire list of items can be prioritized. MaxDiff differs from Conjoint and is often assumed to be cognitively easier for participants. Professor Jordan Louviere created this form of analysis in 1987.
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