SEATTLE — The experiment conducted by then Stanford psychologist David Rosenhan tested the legitimacy of the psychiatric community at the time.

The results of the study were thought to largely improve the mental health medical community, but Susannah Cahalan's new book The Great Pretender takes a more critical look at what these results showed.

Segment Producer: Joseph Suttner. Watch New Day Northwest 11 AM weekdays on KING 5 and streaming live on Segment Ideas? Feedback? Contact Us