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Alternate-Form Reliability

Alternate-Form Reliability

Alternate-Form Reliability:

The alternate-form reliability of a survey instrument, like a psychological test, helps to overcome the "practice effect", which is typical of the test-retest reliability . The idea is to change the wording of the survey questions in a functionally equivalent form, or simply to change the order of the questions in the first and the second survey of the same respondents.

A common quantitative measure of the alternate-form reliability is the value of the correlation coefficient between the results obtained in two surveys - with the initial and re-worded questions.

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Courses Using This Term

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Survey Analysis
This course will teach you how to analyze data gathered in surveys.
Survey Design and Sampling Procedures
This course will teach you the crafting of survey questions, the design of surveys, and different sampling procedures that are used in practice using basic principles of survey design.
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