 In 1894, Morgan developed the methodology that most psychologists now follow, known as Morgan’s Canon.The behaviourists' critique of the anecdotal, anthropomorphic methods as subjective, rejected the possibility of internal states in animals, and were more interested in human control over animals than natural behaviour.Considered the founder of behaviourism, American psychologist John B. Watson studied animal psychology and was critical of introspective psychology and anecdotal cognitivism.