The researchers used face-to-face interviews to collect information on factors such as depression and loneliness. What kind of bias is likely to be present in this study due to this study method? Check all that may apply.
The authors state that one of the limitations of their study is that “the sample in this study consists of older adults (60 or above) living in one county in Hunan, China”. Which of the following is true for this study? Check all that may apply.
Let’s assume that the authors of this study mention that their study results are biased away from the null. What does this exactly mean?
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