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Dichotomous rating scale

juliek

Community Member

Joined:

Dec 13, 2012

What is the most appropriate analysis of the comparison of two items along a continuous scale?

For example, 20 people rate their preference between Pepsi and Coke on a continuous scale, with 100 increments between the 2 extremes.

Is the center point 0, and one side negative and the other positive?

Thanks,

Julie