Industrial psychologists and management practitioners have long been interested in searching for factors which influence motivation and productivity. This paper presents a theory to systematize the complex nature of motivational phenomena in connection with performance. Partial theories of motivation are integrated into a general model of motivation, and this general model along with ability is incorporated into a model of performance. The general theory provides a comprehensive scheme for explaining the relationships between various determinants of human motivation and performance and can also serve as a predictive device.
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