Please Help, Thanks True or false questions A placebo is an important aspect of
ID: 3068727 • Letter: P
Question
Please Help, Thanks
True or false questions
A placebo is an important aspect of some studies because the thought that one is receiving some type of treatment can actually result in improvement in a person's condition, even if the treatment offers absolutely no benefit.
It is a desirable characteristic of a study for the sampling frame to be as close in size and similarity to the sample as possible.
If an association is found between the explanatory variable and response variable in a randomized experiment, it could be that a confounding variable -- which is related to the explanatory variable and may actually cause the change in the response variable -- is responsible.
One benefit of a retrospective observational study is that people do not have to try to accurately recall information from the past.
Does the use of cell phones lead to a higher incidence of brain cancer? People with brain cancer were matched with people who did not have brain cancer on age, gender, and living environment. Each participant in the study was asked to answer questions about previous life experiences and exposures. This is a retrospective, case-control study.
Explanation / Answer
A placebo is an important aspect of some studies because the thought that one is receiving some type of treatment can actually result in improvement in a person's condition, even if the treatment offers absolutely no benefit.-true
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It is a desirable characteristic of a study for the sampling frame to be as close in size and similarity to the sample as possible-true
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f an association is found between the explanatory variable and response variable in a randomized experiment, it could be that a confounding variable -- which is related to the explanatory variable and may actually cause the change in the response variable -- is responsible. ---true
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One benefit of a retrospective observational study is that people do not have to try to accurately recall information from the past.-True
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Does the use of cell phones lead to a higher incidence of brain cancer? People with brain cancer were matched with people who did not have brain cancer on age, gender, and living environment. Each participant in the study was asked to answer questions about previous life experiences and exposures. This is a retrospective, case-control study.-true