CA part two Flashcards
1
Q
Validity
A
Validity refers to the soundness or rigour of a study. A study is valid if the way it is designed and carried out means that the results are unbiased – that is, it gives you a more trustworthy estimate of clinical effectiveness.”
2
Q
Internal validity
A
An RCT is internally valid if it truthfully reports the intervention effect
3
Q
External validity
A
An RCT is externally valid if the findings can be generalised to other contexts
4
Q
How do RCTs attempt to limit bias?
A
Randomly allocating participants to groups
Blinding participants, investigators and outcome assessors to that allocation (where possible)
Including a control or comparison group
5
Q
A
