Your input and results



This uses the function getRCIfromSDandAlpha() in my CECPfuns R package to get the RCI but the maths is trivial and straight out of the original work on the RCI. The code combines that RCI with the standard formula for the Confidence Interval (CI) to give what I am calling a 'plausible interval' around that RCI based on the width of the CI you have requested. Until the n is large, the interval is wide which I think should help us understand this. Deciding when your dataset size is too small to give a usably tight plausible interval for the dataset RCI and hence that it would be better to use some 'referential' RCI is an interesting challenge. I'll do some modelling to address that soon.

App created by Chris Evans licenced under a Creative Commons, Attribution Licence-ShareAlike Please respect that and put an acknowledgement and link back to here if re-using anything from here.

Background and related resources

This shiny app is one of a growing number in, my shiny server
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