Asked by precious Crittenden on Jul 31, 2024
Verified
In a case-control study,a researcher found no association between exposure to A and disease B.Later she found out that there was a misclassification when measuring exposure to A,in both cases and controls.What is a potential explanation for the results (no association) of this case-control study?
A) Nondifferential misclassification
B) Differential misclassification
C) Selection bias
D) Confounding
E) Effect-modification
Nondifferential Misclassification
A type of measurement error in which the misclassification of an exposure or outcome does not vary between the study groups.
Differential Misclassification
A type of error in epidemiological studies where the misclassification of exposure or disease status differs between groups.
Case-Control Study
A study layout where two sets are identified based on different outcomes and analyzed to discover a causative element.
- Understand the concept of misclassification bias in epidemiological studies.
Verified Answer
CS
Caitlin SaundersAug 06, 2024
Final Answer :
A
Explanation :
This is an example of nondifferential misclassification.The fact that the misclassification affected both cases and controls indicates a nondifferential misclassification,which dilutes the association between A and B.
Learning Objectives
- Understand the concept of misclassification bias in epidemiological studies.