<P> Sheldon's ideas that body type was an indicator of temperament, moral character or potential--while popular in an atmosphere accepting of the theories of eugenics--were soon widely vilified . </P> <P> The principal criticism of Sheldon's constitutional theory was that it was not a theory at all but one general assumption, continuity between structure and behavior, and a set of descriptive concepts to measure physique and behavior in a scaled manner . </P> <P> His use of thousands of photographs of naked Ivy League undergraduates, obtained without explicit consent, from a pre-existing program evaluating student posture, has been described as scandalous, and perverted ("the study of nude people by lewd people"). </P> <P> His original visual assessment methodology, based on the photographs, has also been criticised as subjective . </P>

Who developed the theory of ectomorphic endomorphic and mesomorphic body types