before publication in a reputable journal the findings of a research study must undergo scrutiny by experts in the field in a process known as what
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Nutrition Final Exam Quizlet

1. Before publication in a reputable journal, the findings of a research study must undergo scrutiny by experts in the field in a process known as what?

Correct answer: A

Rationale: The correct answer is A: peer review. Before publication, research findings must undergo peer review, where experts in the field evaluate the validity and significance of the study. Choice B, cohort review, is incorrect as it does not involve the same level of evaluation by experts. Choice C, research intervention, is not a term used to describe the evaluation process before publication. Choice D, double-blind examination, refers to a study design where neither the participants nor the researchers know who is receiving a particular treatment, which is not the same as the peer review process.

2. What is one benefit of using controls in an experiment?

Correct answer: D

Rationale: The correct answer is D. Controls in an experiment ensure that the subjects are similar in all respects except for the treatment being tested. This allows for a fair comparison between the treatment group and the control group. Choice A is incorrect because the size of the groups is not the primary benefit of using controls. Choice B is incorrect as blinding, not controls, refers to subjects not knowing about the experiment. Choice C is incorrect as it pertains more to randomization than the use of controls.

3. What is a common symptom of Kawasaki disease?

Correct answer: A

Rationale: The correct answer is A. Persistent fever lasting more than 5 days is a hallmark symptom of Kawasaki disease, often accompanied by rash and conjunctivitis. Excessive vomiting (choice B), sudden weight gain (choice C), and decreased appetite (choice D) are not typically associated with Kawasaki disease. Therefore, choices B, C, and D can be eliminated as they do not align with the common symptoms of Kawasaki disease.

4. What is the primary purpose of a placebo in an experiment?

Correct answer: D

Rationale: The correct answer is D. A placebo serves as a control for comparison with the treatment group, helping to eliminate bias and ensure the results are due to the treatment itself. Placebos are crucial in research to distinguish the actual effect of the treatment from psychological or subjective factors. Choice A is incorrect because the purpose of a placebo is not related to reducing the cost of the experiment. Choice B is incorrect because while placebos are used in double-blind studies, their primary purpose is not to make the experiment double-blind. Choice C is incorrect because the purpose of a placebo is not to increase the number of participants but rather to serve as a comparison group for the treatment being tested.

5. What is a common side effect of the antibiotic tetracycline in children?

Correct answer: A

Rationale: Discoloration of teeth is a well-known side effect of tetracycline, especially when administered to children below 8 years of age. Tetracycline can bind to calcium ions in developing teeth, causing them to become discolored and appear yellow or brown. Increased appetite, elevated blood glucose levels, and decreased bone density are not commonly associated with the use of tetracycline in children, making them incorrect choices.

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