And still more: "Failure to specify selection criteria leads to the risk of ‘cherry picking’ or ‘selection bias’ – choosing a sample that fulfils the desired outcome of the study, rather than one which is neutral and unbiased. The article on the late thirteenth century scholastic writer Duns Scotus was not selected, for example, despite being – on any measure of notability – one of the three most important philosopher-theologians of the middle ages (the other two being William Ockham and Aquinas, of course). The Wikipedia article on Scotus has been the target of vandalism, still uncorrected, and is patchy and uneven. The Britannica article, by contrast, is written by Allan Wolter, a Scotus scholar and author of many studies on Scotus. There is no comparison between Britannica and Wikipedia here. It is the same story for William of Ockham. The Britannica article is written by Paul Vignaux, author of Philosophy in the Middle Ages. The Wikipedia article is a mess, incorporating content from the Catholic Encyclopedia mixed up with random and often incoherent contributions from Wikipedian editors."