He chose to study outstanding individuals and found that people have certain needs that are unchanging and genetic in origin.
These needs are the same in all cultures and are both physiological and psychological.
Maslow described these needs as being hierarchical in nature; some needs are more basic and as these needs are satisfied, other higher needs emerge
Maslow chose to collect data for his theories by studying outstanding individuals. His studies led him to believe that people have certain needs which are unchanging and genetic in origin. These needs are the same in all cultures and are both physiological and psychological. Maslow described these needs as being hierarchal in nature, meaning that some needs are more basic or more powerful than others and as these needs are satisfied, other higher needs emerge