Medical Statistics at a Glance
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Wiley-Blackwell

MCQs

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Chapter 34, Question 1.
Implication of bias

Select all of the following statements which you believe to be true. The presence of bias in a study implies that:

The results of the study are not precise.
The results of the study are not accurate.
There is a systematic difference between the results obtained and those expected.
There are missing readings.
The individuals in the study must have been selected using a random selection procedure.