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As reported in previous research, personality is associated with self-report outcome data. However, if practitioners utilize existing measures of hearing problems at the prefitting stage, separate personality data will not yield additional leverage in prediction of long-term fitting outcomes. Traditional fitting verification data as measured in this study, proved minimally useful in prediction of long-term outcomes of the fitting. A large proportion of variance in self-report fitting outcomes has yet to be accounted for. Finally, it appears that certain types of questionnaires might be more appropriate for research evaluating new amplification devices, whereas a different questionnaire approach might be optimal for evaluating intervention effectiveness in a clinical context.
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Cox et al. (2007) studied this question.
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