Unformatted text preview: ero may be arbitrary
Allows researchers to use more powerful stats! I eat 5 servings of vegetables a day
2 3 4 5 Ratio Scales
• These are interval scales a meaningful zero point.
This allows magnitudes to be compared arithmetically
Units sold, number of purchases, probability of purchase Please allocate 100 points based on your preferences to the following foods:
___ you like something
50 mac and cheese, 25 ﬁsh, 20 carrots, 5 cupcakes.
ratio scale: you can actually assign 0 to a category. Carrots ___ 0 now has a meaning. people can compare. 0 to 100 how much Cupcakes ___ Fish ___ Mac ‘n Cheese 100 Sum 9 Types of Scaling Techniques
Rating Scales Continuous
Rating Scales Rank
Differential Comparative vs.
Comparative scales involve the direct comparison of
stimulus objects. Comparative scale data must be
interpreted in relative terms...
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This document was uploaded on 03/25/2014.
- Spring '14