Give the first version of the test to a selected group of people and convert the results in numerical form.How do you measure alternative forms reliability? The researcher must redesign the questionnaire to obtain reliable results. For the purposes of the statistical study, it is not appropriate that the same questionnaire produce such wildly different responses from the same individual. This means that there is some mistake in the way the questionnaire was designed by the researcher. If the responses of the person vary wildly we conclude that the questionnaire does not have alternate forms reliability. Suppose that a month later, the person is once again given the same form to fill with some of the questions rephrased. Alternate Forms ReliabilityĮxample: Suppose that a person is asked to fill a questionnaire in order to conduct a personality test. ![]() Alternate forms reliability is a concept in statistics and psychology which means that two different versions of the same questionnaire/form/test should produce similar responses from the individuals being tested.
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