Zeida: Dr  Ladlow, a research psychologist, has convincingly demonstrated that his theory about the determinants of rat behavior generates consistently accurate predictions about how rats will perform in a maze  On the basis of this evidence, Dr  Ladlow has claimed that his theory is irrefutably correct  Anson: Then Dr  Ladlow is not a responsible psychologist  Dr  Ladlow' s evidence does not conclusively prove that his theory is correct
Responsible psychologists always accept the possibility that new evidence will show that their theories are incorrect
the application of a general principle