Stats methods
Bootstrap_Spearman
A quick exploration of bootstrapping a Spearman and why you might, or might not, want it.
Spearman-Brown formula
How does internal reliability relate to number of items?
Chance corrected agreement
Simple plotting of raw agreement and Cohen's kappa for various prevalences of the rated quality and only chance agreement
Pre/post analyses
Teaching myself about pre/post therapy change analyses using R. Probably the first of a series of posts.
Exact confidence intervals for difference between proportions
This describes the ExactCIdiff package, unpacks the arguments to the functions, looks at timings and notes an oddity, a typo I think, in the original paper about the package.
Scores from matching things
Mostly about the method of derangements but some huxtable!
Derangements #2
Follows on from 'Scores from matching things'
Jacobson #1
The Jacobson plot and RCSC (Reliable and Clinical Change) methods for those who have never met them before or don't feel confident they understand them.
Quantiles and their confidence intervals
A general coverage of quantiles, the ECDF (Empirical Cumulative Distribution Function) and confidence intervals (CIs) around quantiles