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Define a bipolar scale in the context of psychological survey design. In your answer, explain the type of spectrum it measures, provide a standard example of its opposing endpoints, and specify the format length that is typically considered most effective for this type of scale.
Question: Define a bipolar scale in the context of psychological survey design. In your answer, explain the type of spectrum it measures, provide a standard example of its opposing endpoints, and specify the format length that is typically considered most effective for this type of scale.
Sample answer: A bipolar scale is a rating scale that measures a construct along a dichotomous spectrum, which runs between two opposite poles. A standard example of this is a scale measuring liking that ranges from 'Like very much' to 'Dislike very much'. For bipolar scales, a -point format is typically the most effective.
Key points:
- Defines a bipolar scale as measuring a construct along a dichotomous spectrum
- Provides an example of opposing endpoints at each end of the spectrum
- Specifies that a -point format is typically the most effective layout
Rubric: To receive full credit, the answer must: (1) Define a bipolar scale as measuring a construct along a dichotomous spectrum; (2) Provide a standard example of opposing endpoints (such as 'Like very much' to 'Dislike very much'); and (3) Correctly identify that a -point format is typically the most effective.
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Research Methods in Psychology - 4th American Edition @ KPU
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