A subject might be taught the names of all the major league baseball teams. Having accomplished this, the subject might then learn the names of all the teams in the National Football League. Later, when retention for baseball team names is tested, a recognition test using matching might yield a score of 65 percent, recall might be 40 percent, yet relearning might be 5 percent. The last result could occur because of the subject’s confusion produced by the fact that many cities have one or more teams in both leagues and/or from nicknames appearing in both leagues but for different cities (New York has the baseball Mets and Yankees and the football Giants and Jets, but San Francisco has the baseball Giants, for example).