سؤال إنجليزي للصف العاشر في القراءة والاستيعاب

In one fascinating experiment, scientists showed that if you wear a white coat that you believe belongs to a doctor, your ability to pay attention increases sharply. However, if you wear the same white coat believing it belongs to a painter, there's no improvement in your ability to concentrate. As the scientists behind the experiment stated, 'The clothes we wear have power not only over others, but also over ourselves.'