This idea was expanded upon with Clayton Alderfer's ERG theory and one aspect of it can be tested with John Curtis Gowan's Northridge Developmental Scale.
This idea was expanded upon with Clayton Alderfer's ERG theory and one aspect of it can be tested with John Curtis Gowan's Northridge Developmental Scale. Norwood used this theory to propose that humans can seek coping and helping information, while William James proposed a similar version which stated material, social and spiritual levels. First proposed in a 1943 paper titled A Theory in Human Motivation, one of its levels had earlier been introduced by Kurt Goldstein and it states that factors like food and safety must be satisfied before more complex desires like self-esteem and confidence are met. FTP, identify this psychological concept whose seventh level is self-actualization, an idea proposed by Abraham Maslow. 
This idea was expanded upon with Clayton Alderfer's ERG theory and one aspect of it can be tested with John Curtis Gowan's Northridge Developmental Scale.
Maslow's Hierarchy of Needs