In persons with anorexia nervosa, abnormalities in serotonin levels may contribute to the expression of

Stanley was born in October of 1944. In April of 2009 his __________ age will be 64 years

a. developmental b. physiological c. chronological d. social

A theater reported that their highest beverage sales this year occurred during showings of The Great African Desert. However, we cannot conclude that the film affected beverage consumption because

a. the placebo effect was not considered. b. only a correlation can establish causation. c. no correlation was computed. d. there was no control group.