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Listening Quiz: Giải Thích Giai Đoạn Rửa Trôi trong Nghiên Cứu Chéo – Advanced Level
Th8 10, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà nghiên cứu y học (English for Medical Researcher)
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1.
What is the main topic of Sarah and Daniel’s conversation?
The purpose and length of the washout period in a crossover study
The side effects of two different drugs
Why a study should avoid using two treatments
How to recruit more participants for a clinical trial
Explanation:
Sarah explains the study design and focuses on the washout period, why it is needed, and why it lasts two weeks.
2.
Why is the washout period important in the study?
To avoid carryover
To make the study last longer
To increase the number of treatments
To replace one of the treatments
Explanation:
Sarah says the washout period is important to avoid carryover.
3.
How long will the washout period be?
Two weeks
One week
Two months
Three weeks
Explanation:
Sarah states that they chose a two-week washout period.
4.
What can be inferred if the washout period were too short?
Participants would all finish the study faster without problems
The drug would clear from the body more completely
The study would no longer use two treatments
The first treatment might affect the second treatment’s results
Explanation:
Sarah explains that carryover means the first treatment affects the second, and says a too-short washout could make results biased or unclear.
5.
Why does Sarah mention that the two-week washout is based on drug half-life?
To indicate that the drug is unsafe for all participants
To explain that the washout was added to delay the study
To show that the length was chosen so the drug can clear from the body
To suggest the study should use only one treatment
Explanation:
Sarah says the two-week washout was chosen based on drug half-life and that it allows the drug to clear from the body.
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