Frederick Herzberg was a psychologist known for developing the two-factor theory of motivation. The theory states that certain factors lead to job satisfaction while different factors lead to dissatisfaction. Factors related to the job itself, such as achievement and recognition, motivate employees, while factors related to the job context, like salary and working conditions, prevent dissatisfaction but do not motivate. Though influential, the theory has also received criticism for oversimplifying motivation and not accounting for individual differences.