There was a paper a short while back, "Why all randomised controlled trials produce biased results", by Alexander Krauss, in the Annals of Medicine. Raised some academic eyebrows. Krauss says,…

Review! We're continuing with the CGPA example. The data is on line, and of unknown origin, but good enough to use as an example. We will build a correlational model,…

Gallup has published two new polls. The first estimates the percent of those desiring non-procreative sex in each state. The second guesses the percent of non-affiliation with traditional religion (Christianity).…

Review! Last time we successfully computed our model (8):     (8) Pr(CGPA = i | guesses of new measures, grading rules, old obs, model), where i = 0,...,5. The model…