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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 .
Likert scaling is a bipolar scaling method, measuring either positive or negative response to a statement. Sometimes an even-point scale is used, where the middle option of "neither agree nor disagree" is not available. This is sometimes called a "forced choice" method, since the neutral option is removed. [10]
These modifications included changing the 1-10 rating scale to be from 1-9, which 0 used as "not applicable". This also simplified future data entry for the questionnaire since a maximum rating would no longer require two keystrokes (as it would have in "10"). This in turn would reduce response bias from subjects.
The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]
D = 1.3; F = 0.0; Another policy commonly used by 4.0-scale schools is to mimic the eleven-point weighted scale (see below) by adding a .33 (one-third of a letter grade) to honors or advanced placement class. (For example, a B in a regular class would be a 3.0, but in honors or AP class it would become a B+, or 3.33).
The popularity of rating people and their abilities on a scale, such as 1–10, traces back to at least the late 20th century, and the algorithms for aggregating quantitative rating scores far earlier than that. The 1979 film 10 is an example of this.
This stems from the practice that exams were traditionally given by 3 examiners. Each had to rate the student's examination performance on a 1–10 scale, and the final grade was the sum of the three ratings. On a 1–10 scale, passing is 6, so on a 1–30 scale the minimum passing grade is 3*6 = 18.
A depression rating scale is a psychometric instrument (tool), usually a questionnaire whose wording has been validated with experimental evidence, having descriptive words and phrases that indicate the severity of depression for a time period. [1] When used, an observer may make judgements and rate a person at a specified scale level with ...