If a researcher is confident that few,if any,respondents will use the negative side of a symmetric scale,he/she may opt for a non-symmetric scale.If in doubt,the researcher should pretest the scale.

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If the researcher is confident that few, if any, respondents will use the negative side of a symmetric scale, he or she may opt for a non-symmetric scale. However, if the researcher is in doubt, it is always recommended to pretest the scale to ensure its validity and reliability.

If a Researcher Is Confident That Few,if Any,respondents Will Use