Andy’s motivation for working so hard
is most likely the extrinsic motivation of a raise in his salary (money).
Extrinsic motivation refers to the phenomenon
when behavior and actions are motivated by external factors, such as
rewards, fame or praise rather than intrinsic factors which lie within an individual (such as: improving one’s skills and work ethic or genuine interest in
the task or project at hand).
In Andy’s case, where he is working so hard in hopes for a
raise, he is externally motivated rather than internally motivated since he
hopes to be monetarily rewarded (extrinsic factor)for his hard work.