^ Creek, Jennifer; Lougher, Lesley (2008). "Goal setting". Occupational therapy and mental health (4th ed.). Edinburgh; New York: Churchill Livingstone Elsevier. pp. 111–113 (112). ISBN 9780443100277. OCLC 191890638. Client goals are usually set on two or three levels. Long-term goals are the overall goals of the intervention, the reasons why the client is being offered help and the expected outcome of intervention... Intermediate goals may be clusters of skills to be developed, attitudes to be changed or barriers to be overcome on the way to achieving the main goals... Short-term goals are the small steps on the way to achieving major goals.
Goal-setting theory was formulated based on empirical research and has been called one of the most important theories in organizational psychology. Edwin A. Locke and Gary P. Latham, the fathers of goal-setting theory, provided a comprehensive review of the core findings of the theory in 2002. In summary, Locke and Latham found that specific, difficult goals lead to higher performance than either easy goals or instructions to "do your best", as long as feedback about progress is provided, the person is committed to the goal, and the person has the ability and knowledge to perform the task.