Exam 21: Multidimensional Scaling and

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With the full- profile approach to constructing conjoint analysis stimuli, respondents rank all the stimulus profiles.

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is a class of procedures for representing perceptions and preferences of respondents spatially by means of a visual display.

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Which guideline for deciding on the number of MDS dimensions relies on theory or past research to suggest the number of dimensions?

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The basic conjoint analysis model expressing the fundamental relationship between attributes and utility in conjoint analysis is shown below: What does ki represent? U(X) = M Σ I=1 Ki Σ αijXij j=1

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When conducting conjoint analysis, the attributes selected should be salient in influencing consumer preference and choice.

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The pair- wise approach to conducting conjoint analysis stimuli is more commonly used than the full- profile approach.

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What are the disadvantages of internal analysis of preferences?

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is an MDS technique for scaling qualitative data that scales the rows and columns of the input contingency table in corresponding units so that each can be displayed in the same low- dimensional space.

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Quantitative data can be mapped using correspondence analysis.

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is (are) a squared correlation index that indicates the proportion of variance of the optimally scaled data that can be accounted for by the MDS procedure. This is a goodness- of- fit measure.

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The objective in MDS is to obtain a spatial map that best fits the input data in the smallest number of dimensions.

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