Three researchers are evaluating taste preferences among three leading brands of cola. After participants taste each brand, the first researcher simply checks to see if participants can distinguish them reliably by labeling each cola as "same" or "different" from the others, by giving them the same or different letter or number code. The second researcher asks each participant to identify the most preferred, the second most preferred, and the least preferred. The third researcher asks each participant to rate each of the colas on a 10-point scale, where a rating of 1 indicates “terrible taste” and 10 indicates “excellent taste," with the assumption that the difference betweeen a rating of 4 and 6 is the same as the difference between a 6 and 8. Identify the scale of measurement used by each researcher. nominal; ordinal; interval interval; ordinal; nominal nominal; interval; ordinal ordinal; interval; ratio
Three researchers are evaluating taste preferences among three leading brands of cola. After participants taste each brand, the first researcher simply checks to see if participants can distinguish them reliably by labeling each cola as "same" or "different" from the others, by giving them the same or different letter or number code. The second researcher asks each participant to identify the most preferred, the second most preferred, and the least preferred. The third researcher asks each participant to rate each of the colas on a 10-point scale, where a rating of 1 indicates “terrible taste” and 10 indicates “excellent taste," with the assumption that the difference betweeen a rating of 4 and 6 is the same as the difference between a 6 and 8. Identify the scale of measurement used by each researcher.
nominal; ordinal; interval |
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interval; ordinal; nominal |
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nominal; interval; ordinal |
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ordinal; interval; ratio |
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