A number of research studies have been undertaken to see the validity of hierarchy of needs. Lawler and Suttle collected data on 187 Managers in two different organizations for a period of six months to one year. No evidence was found to support Maslow’s theory. They found there were two level of needs-biological and other needs- and that other needs would emerge only when biological needs were reasonably satisfied. A survey conducted in India of 200 factory worker revealed that they give top priority to job security, earnings and personal benefits-all lower other needs.
It is generally seen that needs do not follow Maslow’s hierarchy. The hierarchy is determined by individuals differently. They proceed to follow their own pattern of needs satisfaction. Some people may try for self-actuating needs rather than lower needs. For some persons esteem needs are more important than social needs.
There is no cause effect relation between and need and behavior. A particular need may cause behavior in different ways in different person. Similarly, one particular behavior may result due to different needs. It is said that higher needs motivate a person when lower needs are reasonably satisfied. The word ‘reasonably satisfied’ is a subjective matter. The level of satisfaction may be different for persons.