Maslow has been criticized on the grounds that his research

A) should have included neurotics and psychotics.
B) simply restated what psychology already knew about personality.
C) is not scientifically rigorous.
D) does not apply outside the laboratory.

Maslow's research has been criticized for lacking scientific rigor. His theories were based on personal observation, anecdotal evidence, and self-report data rather than empirical research. Critics argue that Maslow's methodology was not scientific enough to support his claims.