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Bias – the biggest enemy
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Undergraduate |
University of New South Wales Medical Stats Online Tutorial 5 addresses ‘Bias - the biggest enemy’.
Key Concepts addressed:- 2-1 Comparisons are needed to identify treatment effects
- 2-2 Comparison groups should be similar
- 2-5 People should not know which treatment they get
- 2-7 All should be followed up
Details
This tutorial follows the design of a trial forming a flow diagram as we learn about two important elements:
- Bias and how to identify, control and adjust for it
- Measurement and outcomes – data analysis using intention to treat, regression, etc