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Selection bias may also make a test look better than it really is.
Participants were paid, which also provides a potential selection bias.
Additionally, selection bias could have also played a large part in the study's results.
Sample selection bias is an obvious problem in many of the studies.
Selection bias is likely to have occurred in this investigation.
The results reported in this article are somewhat limited by selection bias.
Experience with network studies suggests that selection bias is difficult to avoid.
Several kinds of selection bias must be considered when we look at Siegel’s constant.
Using volunteers in the museum study provides a potential selection bias.
Furthermore, it can create the same problems with selection bias as does competition.
Note also that there is probably some selection bias going on in these reviews.
However, the likely effects of selection bias flaw this approach.
Care must be taken to avoid observation and selection biases.
Previous studies have been difficult to interpret due to problems with selection bias.
This leads to selection bias, as the treatment and control groups now differ.
The authors concluded that there is a chance of selection bias.
This approach may reduce selection bias as a possible explanation of the association between physical activity and health.
This would indicate that a selection bias must not be ruled out.
Selection bias may have also been introduced due to the low participation rate in this study.
An example of selection bias is called the "caveman effect".
They use other means to create a comparison group, while still attempting to control for selection biases.
However more recently it has been argued that the Freeman law is an effect of selection bias.
Authenticity and selection bias are two main sources of controversy about the book.
Many test scores have dropped for lower income children and there has been selection bias towards getting the right school.
Any time the response rate is not 100%, there is the potential for selection bias.
