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A rating scale is a set of categories designed to obtain information about a quantitative or a qualitative attribute. In the social sciences , particularly psychology , common examples are the Likert response scale and 0-10 rating scales, where a person selects the number that reflecting the perceived quality of a product .
Research by Labovitz [22] and Traylor [23] provide evidence that, even with rather large distortions of perceived distances between scale points, Likert-type items perform closely to scales that are perceived as equal intervals. So these items and other equal-appearing scales in questionnaires are robust to violations of the equal distance ...
Qualitative research is a type of research that aims to gather and analyse non-numerical (descriptive) data in order to gain an understanding of individuals' social reality, including understanding their attitudes, beliefs, and motivation.
Pooled-rater scoring typically uses three to five independent readers for each sample of writing. Although the scorers work from a common scale of rates, and may have a set of sample papers illustrating that scale ("anchor papers" [20]), usually they have had a minimum of training together. Their scores are simply summed or averaged for the ...
The potential-for-conflict Index (PCI) describes the ratio of scoring on either side of a rating scale's centre point. [77] This index requires at least ordinal data. This ratio is often displayed as a bubble graph. The PCI uses an ordinal scale with an odd number of rating points (−n to +n) centred at 0. It is calculated as follows
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