Some theories are still being tested ... focusing more on social and cultural factors. Humanistic psychology, developed in the mid-20th century by figures such as Abraham Maslow and Carl Rogers ...

Maslow became the leader of the humanistic school of psychology that emerged in the 1950s and 1960s, which he referred to as the "third force" -- beyond Freudian theory and behaviorism.

Some theories are still being tested ... focusing more on social and cultural factors. Humanistic psychology, developed in the mid-20th century by figures such as Abraham Maslow and Carl Rogers ...