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A researcher discovered that items on a scale did not measure what they were intended to measure. The scale, therefore, has an issue with:
Q39: Dr. Andros is a history professor studying
Q65: If researchers unintentionally manipulate another variable or
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Q79: Dr. Nixon noted the following results:
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Q117: Which observational method is more prone to
Q128: Professor Loman is interested in conducting a
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Q139: You end up recruiting college students who