Optimism and Pessimism
According to Dr. Martin Seligman, attitudes of optimism and pessimism affect job performance. Studies he did on applicants for life insurance sales included people who failed the industry test, but tested well on optimism. The research was programmed for two years and concluded with two basic findings.
First, within the group that was hired, the optimists outsold the pessimists. Second, the group of optimists who failed the industry test outsold everyone. This supports the theory that human potential has two factors. One is ability and second is optimism or pessimism. It shows there is a science that interplays between our attitudes and our actions.