Assessing chance variability in treatment trials.
Chance variability hampers the interpretation of treatment trials. There are two main ways in which we can be misled: spurious findings may be produced by chance alone, or real effects may be hidden. P values and confidence intervals can help us to avoid these pitfalls when interpreting the findings from clinical trials.
Davies
H T
HT
Department of Management, University of St Andrews.
D015982:Bias; D002986:Clinical Trials as Topic; D016001:Confidence Intervals; D003627:Data Interpretation, Statistical; D006801:Humans; D011336:Probability