Suggested answer to exercise: Evaluation of a nurse-run asthma school, 5

Question 5: What bias, if any, might there be in the FEV1 measurement?

Suggested answer

The FEV1 is an objective measurement, so less subject to this bias. It seems unlikely that patients could make their FEV1 larger to please the researcher.

Back to Exercise: Evaluation of a nurse-run asthma school.

To Applied Biostatistics index.

To Martin Bland's M.Sc. index.

To Martin Bland's home page.

This page maintained by Martin Bland.
Last updated: 20 October, 2006.

Back to top.