Discuss alternate-form reliability. What is a benefit of using this approach?

What will be an ideal response?


Alternate-form reliability concerns the consistency of a measure based on content, for instance when two forms of the measure are administered to a sample and reliability coefficients are obtained between them (Drummond, 2000; Urbina, 2004). The intent is to have alternate forms of a test that consistently measure the same concept. Alternate forms allow a researcher to measure something at different times, and control for the effects of testing (testing occurs when a test taker recalls items on a test and his or her performance is possibly influenced by pretest). One major benefit of establishing alternative-form reliability involves circumstances where a user wants to avoid the respondent remembering the questions from a previous administration but retain assessing the construct.

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