Individual Associated With The Theory:

David McClelland was an American psychologist who lived from 1917 to 1998. David McClelland was “a distinguished Research Professor of Psychology at Boston University and a Professor Emeritus of Psychology at Harvard University in Cambridge Massachusetts” (McClelland, 2002). McClelland spent his life researching and developing theories on human behavior and motivation. David McClelland also spent time as a professor at Connecticut College and Wesleyan University, where he taught psychology and continued his research on human behavior and motivation.
Psychologist David McClelland was a member of the American Academy of Sciences and the author of several books. Popular titles by McClelland include The Achievement Motive, and The Achieving Society. Married twice, McClelland left his legacy to seven children and nine grandchildren after his death from heart failure in 1980 (McClelland, 2002).

Behaviors Associated With The Theory:
McClelland’s theory of needs states that human behavior is influenced by certain needs. McClelland’s theory of needs, also known as the Achievement Motivation Theory, states that individuals are motivated by three life needs- the need for power, the need for achievement, and the need for affiliation. Each of the needs in McClelland’s Achievement Motivation Theory is responsible for motivating certain behaviors. “The individuals with high achievement needs are highly motivated by competing and challenging work” (“McClelland’s theory of”, 2012). People with high achievement needs may seek out performance improving opportunities in their careers and lifestyles. They may also seek approval and affirmation from others. McClelland noticed that “they set challenging targets for themselves and they take deliberate risk to achieve those set targets” (“McClelland’s theory of”, 2012).
On the other hand,