With no explanation, label text_A→text_B with either "no" or "yes".
text_A: Method 1: We look at how having a brother correlates with disease case by case according to pre-conditions. Method 2: We look directly at how having a brother correlates with disease in general.
text_B: To understand how having a brother affects disease, is it more correct to use the Method 1 than Method 2?
yes.