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Unformatted text preview: different times 3. Split-halves test: Use of two different instruments to measure some concept simultaneously Validity is focused on the instrument or tool that is used in the research process. There are four main tests of validity. For example, using a ruler to measure the length of a sheet of paper, or using a scale to measure a persons weight. There are four tests of validity: 1. Face validity: Assuming that the instrument will properly measure the concept as intended 2. Content validity: 3. Construct validity: Based upon direct correlation. One concept is tied to another. 4. Inter-item association: Brief History The Cold War began in 1945, just as WWII ended....
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- Fall '09