An individual's personality may change in different situations. The demands of different situations may call for different aspects of one's personality. Therefore, we should not look at the personality factors in isolation. Although certain generalizations can be made about personality, there exist significant individual differences which are further influenced by situational factors.
The relationship of the above factors affects the formation and development of personality. Physiological inheritance is entirely an internal contribution. Group and the culture are the early environmental factors that influence later behavior. Family and the social setting during early stages of education are the important factors which influence the initial formation of personality. Whatever the child learns lasts for life time. Later in life, it is the peer groups of primary affiliations at work, social activities, etc. which shape the personality of an individual.