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Goal-attainment scaling, a method for evaluating individual or group treatment programs, involves setting up individualized treatment goals and scoring the attainment of goals from the most successful outcome (+2) to the least successful(–2). Having the therapist and patient construct the scale helps to differentiate problems, structure therapy, and clarify outcomes. Over-optimism about the benefits of therapy may cause problems with score validity; measures for external validation are suggested.
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Cline et al. (1973) studied this question.
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