Confidence Interval and Prediction Interval

•Confidence interval (C.I.) the width of the diamond: in 95% of cases mean effect size will fall inside the diamond

•Quantifies accuracy of the mean 

•Only considers error of estimation of mean

•Prediction interval (P.I.) horizontal line to either end of the diamond: in 95% of cases the true effect in a new study will fall inside the horizontal lines

•P.I. addresses the actual dispersion of effect sizes

•Considers both true dispersion as well as error

PSM / COMMUNITY MEDICINE by Dr Abhishek Jaiswal is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
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