Bayes's theorem is notorious for being a difficult topic to learn and to teach. Problems involving Bayes's theorem (either implicitly or explicitly) generally involve calculations based on two or more given probabilities and their complements. Further, a correct solution depends on students' ability to interpret the problem correctly. Shaughnessy (1992) has commented, “There is a good deal of cognitive strain involved in reading the problem and keeping everything straight; it is difficult for students to interpret exactly what they are being asked to do” (p. 471).
Todd D. Cadwalladerolsker, firstname.lastname@example.org, is an assistant professor at California State University at Fullerton. He is interested in students' understanding of proof, probability, and statistics. MONICA CADWALLADEROLSKER