Much research in psychology has been more concerned with how...

Much research in psychology has been more concerned with how large groups of people behave than about the particular ways in which each individual person thinks... too statistical. I find this disappointing because, in my view of the history of psychology, far more was learned, for example, when Jean Piaget spent several years observing the ways that three children developed, or when Sigmund Freud took several years to examine the thinking of a rather small number of patients.