Public Health Flashcards
1
Q
Common bias in case control studies
A
Recall bias
2
Q
what is publication bias
A
- Failure to publish results from valid studies, often as they showed a negative or uninteresting result
3
Q
what is expectation bias
A
- Pygmalion effect
- Observers may subconsciously measure or report data in a way that favours the expected study outcome.
4
Q
what is the hawthorne effect
A
- A kind of bias seen in studies
- A group changing it’s behaviour due to the knowledge that it is being studied
Imp
5
Q
How to calculate positive predictive value
A
TP / (TP +FP)
6
Q
A
