The underlined claim states that biofeedback therapy increases treatment satisfaction by helping patients feel more in control of their symptoms. To support this claim, we should look for evidence that directly connects biofeedback therapy with higher perceptions of treatment quality and satisfaction.
Among the options provided:
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(Choice A) states that biofeedback patients rate the quality of their healthcare more highly than patients of equally effective therapies do. This directly supports the claim, as it indicates higher satisfaction specifically from biofeedback patients compared to others, suggesting that they feel more in control of their symptoms.
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(Choice B) mentions that clinics using biofeedback therapy have more registered patients, which may imply popularity but does not directly indicate treatment satisfaction or control over symptoms.
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(Choice C) discusses the effectiveness of biofeedback therapy for different conditions, but it doesn't address patient satisfaction or feelings of control.
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(Choice D) notes that doctors prescribe biofeedback therapy alongside other treatments, which doesn’t specifically imply patient satisfaction or a sense of control over their symptoms.
Therefore, the choice that most strongly supports the underlined claim is:
A Biofeedback patients rate the quality of their healthcare more highly than patients of equally effective therapies do.