Introductory Psychology CLEP Prep Practice Exam

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Prepare for the CLEP Psychology Exam with flashcards and multiple-choice questions. Each question comes with hints and explanations to help you succeed. Master the content and pass your exam!

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What is the purpose of a double-blind study?

  1. To test the impact of a treatment without any bias in the test results

  2. To measure the impact of a particular treatment in a controlled setting

  3. To compare the results of a treatment to a control group

  4. To increase the generalizability of study results

The correct answer is: To test the impact of a treatment without any bias in the test results

A double-blind study is a type of research design where both the participants and the researchers are unaware of who is receiving the treatment and who is receiving a placebo. This minimizes the influence of bias on the results, as neither the participants nor the researchers have any preconceived notions or expectations about the treatment. Option A is the best choice as it accurately describes the purpose of a double-blind study. Option B is incorrect because while it mentions a controlled setting, it does not mention the need for participants and researchers to be unaware of treatment allocation. This lack of blinding can introduce bias into the results. Option C is incorrect because it only mentions comparing results to a control group, which is an important aspect of any study but it does not address the need for blinding in a double-blind study. Option D is incorrect because while generalizability is an important factor in research, it does