QuestionSBA
QuestionChoice
Gender bias is not likely to be implicated in this study. Although there are marginally more males than females in this study, the difference in numbers is unlikely to bias the results.
10003412
b
Gender bias
QuestionChoice
Performance bias is introduced when the methodology of a trial introduces differences between the intervention and control groups other than the intervention being tested. However, due to the use of blinding, this type of bias is unlikely.
10003413
c
Performance bias
QuestionChoice
Publication bias is introduced when there is a failure to publish research data based on the true findings or true intention of the study. It may occur when there is a conflict of interest. Nothing is known about the publishing of the findings in this scenario.
10003415
e
Publication bias
QuestionChoice
Berkson bias is a type of bias that occurs when findings from hospital studies are not generalisable to a wider community of patients. This may occur in this study as the researcher is only using hospital patients to study the effectiveness of the new drug. His sample may not be representative of all the patients in the community, so his findings may not be generalisable.
10003411
a
Berkson bias
QuestionChoice
Attrition bias is introduced when participants drop out of the study, reducing the sample size and amount of data that can be collected from the research. This study has not been carried out yet, so attrition bias cannot be assessed.
10003414
d
Attrition bias
Concept
Chapter
2693
4158
Types of bias
Topic
207
Research methods
13229
An ST2 doctor in cardiology decides to conduct a study to assess the true treatment effect of a new drug for heart failure.

He consents 55 patients from the hospital to try the new drug, 29 male and 26 female. The study is a blinded randomised control trial.

What type of bias is most likely to occur in this study?
a