题目
ATHK1X01 Practice Quiz (Mastery quiz questions Week 2-13)
单项选择题
Which of the following is NOT an issue you should consider when considering the quality of collected data?
选项
A.Has random sampling been used?
B.Are there any confounding variables?
C.Are there selection biases?
D.If some initial data sources have dropped out, could there be systematic reasons for this?
E.ALL of these statements are issues that you should be considered.
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标准答案
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思路分析
Question restatement: You are being asked which option is NOT an issue you should consider when evaluating the quality of collected data.
Option 1: 'Has random sampling been used?' This is indeed a data quality concern, because non-random sampling can bias results and threaten generalizability, so it is an issue you should consider.
Option 2: 'Are there any confounding variables?' Confounding variables......Login to view full explanation登录即可查看完整答案
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