Khalil is a professional tennis player and is working on his speed. his friend gives him an herbal medicine that he swears will improve his performance. khalil takes the medicine for a few days and finds that he is performing better. later, it is found that the medicine was only sugar and basil leaves. what might explain khalil's improved performance? the testing effect the placebo effect the experimental effect the sugar and basil leaves
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Home » Business » Khalil is a professional tennis player and is working on his speed. his friend gives him an herbal medicine that he swears will improve his performance. khalil takes the medicine for a few days and finds that he is performing better.