McClellan found that people with a high need for achievement perform better than those with a moderate or low need for achievement, and he has noted national different in achievement motivation. Individuals with a high need for achievement have three unique characteristics . First, they set goals that are moderately difficult, yet achievable. Second, they like to receive feedback on their progress toward these goals. Third, they do not like having external events or othet people interfere with their progress toward the goals.