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The term "epistemic feedback" is a form of feedback which refers to an interplay between what is being observed (or measured) and the result of the observation.〔 ''Physics and philosophy: selected essays'', Henry Margenau, 1978, 404 pages, p.287, webpage: (BG287 ): states, "involves an interplay between what is being measured and the result of the measurement". 〕 The concept can apply to a process to obtain information, where the process, itself, changes the information when being obtained. For example, instead of quietly asking customers for their opinions about food in a restaurant, making an announcement about food quality, as being tested in a survey, could cause cooks to focus on having high-quality results. The concept can also apply to changing the method of observation, rather than affecting the data. For example, if after asking several customers about food, they noted the food as generally good or fair, then the questions might be changed to ask, more specifically, which food items were most/least liked. Hence, the interplay can alter either the observations, or the method of observation, or both. == Viewing negative or positive effects == The effects of epistemic feedback can be viewed as either negative or positive, depending on the goal of the observations. When trying to get a secret survey of results, then epistemic feedback can be seen as a negative factor which distorts the original data. However, if the goal is to improve quality, then epistemic feedback could be a positive factor to periodically report areas which need improvement. The risk comes when the feedback temporarily slants the evaluation of quality, so that long-term performance is hindered by current distortion in the way results were measured. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Epistemic feedback」の詳細全文を読む スポンサード リンク
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