 Suppose further additions were made to get to a complete taxonomy. The second worry that arises is methodological. Measures of Big Five traits are questionnaire measures. Unfortunately, the items used tend to have questionable relevance to the traditional moral virtues. Consider, for instance, the agreeableness facet of “altruism”, which researchers tend to characterize in a way that makes it sound quite close to the virtue of compassion (Costa and McCrae 1992: 18). Here are the questionnaire items for altruism from McCrae and Costa’s NEO-PI-R (where “R” is for a reversed item) (Costa and McCrae 1992: 72):