The Supreme Court case of ____________________ overturned the principle of "separate but equal"

Why is a final A to B (i.e, back to the treatment) reversal sometimes carried out in reversal designs?

A) To demonstrate loss of control. B) To reduce the number of participants needed. C) For ethical reasons. D) Both A and C

Due to China being America's second largest creditor, we are now economic codependents

a. True b. False Indicate whether the statement is true or false