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Chapter 2 · Survey: Measurement and Scaling · Slide 39/274

Comparative Scales: Constant Sum Scaling

Respondents distribute a fixed amount (e.g. points, euros, chips, %) entirely across a set of objects — according to a particular criterion.

2.2 · Comparative Scales Method

Comparative Scales: Constant Sum Scaling


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Constant Sum Scaling

Respondents distribute a fixed amount (e.g. points, euros, chips, %) entirely across a set of objects — according to a particular criterion.

Listed below are five attributes of cars. Please distribute 100 points across these attributes so that the number of points you assign to an attribute reflects its relative importance to you. The more points an attribute receives, the more important it is to you. If an attribute is unimportant to you, assign it 0 points. If one attribute is twice as important as another, assign it twice as many points.

AttributePoints
Speed0
Comfort15
Transmission type (manual/automatic)5
Fuel (petrol/diesel)35
Price45
Sum100
QUESTIONSTAR · Dr. Paul Marx 39 / 274
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