Psychological contract the set of expectations held by an employee concerning what he or she will contribute to an organization and what the organization will provide the employee (inducements) in return. Human relations interactions between employers and employees and their attitudes toward one another. Job satisfaction the pleasure and feeling of accomplishment employees derive from performing their jobs well. Morale the generally positive or negative mental attitude of employees toward their work and workplace. Turnover the percentage of an organization"s workforce that leaves and must be replaced low morale may increase this percentage. Motivation the set of forces that causes people to behave in certain ways. Classical theory of motivation a theory of motivation that presumes that workers are motivated almost solely by money. Scientific management breaking down jobs into easily repeated components, and devising more efficient tools and machines for performing them. First challenge to classical theory of human relations management.