Answer:
The answer is- Has never been validated by studies
Explanation:
Maslow's theory is one of the five theories of motivation. According to this theory we have five categories of needs which are; physiological, safety, love, esteem and self-actualization. In his theory, higher needs in the hierarchy begin to emerge when people feel they have sufficiently satisfied the previous need. It is a hierarchy because needs are satisfied sequentially.
However, Maslow's theory was based on his own personal observations and his biographical analysis of individuals he considered to be "self-actualized". The theory was not based on any credible empirical research and has never been tested adequately as a complete theory. Research data does not validate this theory.