The title is an understatement: Heterogeneity in psychiatric diagnostic classification. This is a paper in Psychiatry Research by Kate Allsopp, John Read, Rhiannon Corcoran, and Peter Kinderman. Abstract (to which…

On the Second of March in the Year of Our Lord One Thousand Nine Hundred Sixty-Two, well before the sport became another venue for pencil-necked political correctness, a basketball player…

Long-time readers will recall the epidemiologist fallacy is a shotgun marriage of the ecological fallacy and wee p-values. Make that and/or confidence intervals. For confidence intervals are equivalent to p-values…

This is extracted from this set of papers, which should be read in full. An ordinary regression model is written      mu = beta_0x_1 + ... + beta_0x_p, where mu…

Thanks to reader Victor Domin for pointing us to the paper "On teaching mathematics" by V.I. Arnold. Here's an extended quote on models (do read the whole thing). At this…