Patients Alzheimer Disease Question & Answer Guide (With Explanation)
Understanding this question requires applying core subject principles.
What This Question Is About
This question relates to patients alzheimer disease and requires a structured academic response.
How to Approach This Question
Break the problem into smaller parts and analyze each logically.
Key Explanation
This topic involves patients alzheimer disease. A strong answer should include explanation, application, and examples.
Original Question
Patients with​ Alzheimer’s disease are randomly divided into two groups. One group is given a new​ drug, and the other is given a placebo. After six months they are given a memory test to see whether the new drug fights​ Alzheimer’s better than a placebo. a. Identify the treatment and comparison groups. b. Indicate whether the study is an observational study or a controlled experiment. Explain. Question content area bottom Part 1 a. Choose the correct answer. A. The treatment group consists of those taking the new​ drug; the comparison group consists of those taking the placebo. B. The treatment group consists of all patients in the​ study; the comparison group consists of those taking the new drug. C. The treatment group consists of those taking the new​ drug; the comparison group consists of all patients in the study. D. The treatment group consists of those taking the​ placebo; the comparison group consists of those taking the new drug. Part 2 b. Choose the correct answer. A. This is an observational study. The researchers did not give the patients a memory test beforehand to measure the baseline score on the memory​ test, which is a key criterion of controlled experiments. B. This is a controlled experiment. The researchers randomly assigned patients to either a treatment or control​ group, and they gave the patients a test afterwards to identify the effect of the new drug. This satisfies a key criterion of controlled experiments. C. This is an observational study. The nu
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