Learning and Evaluation/Archive/Learning modules/3Scales

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Scales

Likert Scale
A Likert Scale is very common and generally used to report the intensity of a feeling, belief, opinion or attitude. They typically include a scale from 3 to 7 items. Commonly used terms for the extremes of the scales include strongly agree/strongly disagree, too difficult/too easy, etc.
Example
To what extent do you agree or disagree with the following statement:
The weekly edit-a-thon at the public library should continue:
  • Strongly agree
  • Somewhat agree
  • Neither agree nor disagree
  • Somewhat disagree
  • Strongly disagree


Alternatives to the Likert scale:
Guttman scale – a set of questions or statements that if a respondent agrees with a question/statement, they agree to the previous ones.
(1) "I am aware of Wikipedia" __Yes __No
(2) "I use Wikipedia" __Yes __No
(3) "I edit Wikipedia" __Yes __No
(4) "I contribute to different Wikimedia projects" __Yes __No
Semantic differential – measure affect or people’s positive or negative feelings towards an attitude. Typically a pair of adjectives, like good/bad, fast/slow, etc with 5 to 7 indicators drawn between them. For example:
Bad o o o o o o o Good
Low quality o o o o o o o High quality