Explain the Matched-Pairs Design

Multiple Choice

Explain the Matched-Pairs Design
-A medical journal published the results of an experiment on anorexia. The experiment investigated the effects of a controversial new therapy for anorexia. Researchers measured the anorexia levels of 68 adult women who suffer moderate conditions of the disorder. After the therapy, the researchers again measured the women s anorexia levels. The differences between the the pre- and post-therapy anorexia levels were reported. What is the response variable in this experiment

A) the differences between the the pre- and post-therapy anorexia levels
B) the 68 adult women who suffer from anorexia
C) the disorder (anorexia or no anorexia)
D) the therapy