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Listening Quiz: Bàn Về Một Biến Gây Nhiễu – Medium Level
Th2 11, 2025
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà nghiên cứu học thuật (English for Academic Researcher)
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1.
What is Robert and Sarah mainly discussing?
A schedule change for their meeting
A coding error in a new program
A confounding variable affecting their data
A missing report that needs to be filed
Explanation:
Robert says there is a confounding variable in their data, and the rest of the conversation is about how to handle it.
2.
According to Robert, what does a confounding variable mean?
A mistake in the spreadsheet formula
An issue that always requires removing data
Another factor that affects their results
A factor that increases the sample size
Explanation:
Robert explains that it means another factor affects their results.
3.
What does Robert say they can do to address the problem?
Ignore the problem for now
Add more survey questions
Control the variable in their model
Remove all outlier data points
Explanation:
Robert says, “We can control that variable in our model.”
4.
What does Sarah seem to think about removing data points?
She believes it is the best way to get clearer results
She is open to it, but Robert discourages it because it may cause bias
She is unsure whether the data points are real
She thinks it is necessary before they update the analysis plan
Explanation:
Sarah asks whether they should remove some data points, and Robert responds that removing data might cause bias, so she accepts controlling it in the model instead.
5.
What will Robert do next?
He will start working on the updated analysis plan today
He will ask Sarah to find a new confounding variable
He will wait until they get more data before acting
He will remove several data points from the dataset
Explanation:
Sarah says, “Let’s update our analysis plan now,” and Robert replies, “I will start working on it today.”
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