Amedical 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 79 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 and anorexia levels were reported. identify the experimental units.
the differences between the pre- and post-therapy anorexia levels
the disorder (anorexia or no anorexia)
the therapy time period (pre or post)
the 79 adult women who suffer from anorexia