 Psillos (2000) proposes yet another way in which abduction might supplement Bayesian confirmation theory, one that is very much in the spirit of Peirce’s conception of abduction. The idea is that abduction may assist us in selecting plausible candidates for testing, where the actual testing then is to follow Bayesian lines. However, Psillos concedes (2004) that this proposal assigns a role to abduction that will strike committed explanationists as being too limited.