Respondents will view several items, randomly selected, and react to key metrics and attribute agreement. They will then select their preferred item from the ones evaluated. Ideal for 2-30 items.
TURF analysis is used to determine the best combinations of a given number of items by maximizing unduplicated reach. If included, respondents will evaluate all items (max 15) and TURF analysis is an option for reporting. Ideal for 2-15 items.
MaxDiff is an advanced analytics technique designed to obtain preference/importance scores (utilities) for multiple options of a single item (such as items, product features, claims, etc.). Respondents view a subset of options, and are then asked to indicate which one is "best" and which is "worst". MaxDiff uses respondent's choices to estimate scores for each of the items/options. Ideal for 10-30 items.