The swelling of the breasts is a premenstrual discomfort called

To control for reactive measures, an alternative measure of the dependent variable when assessing college students' attitudes about their political beliefs is

a) how participants vote in a political election b) an online survey about participant attitudes. c) an in-person survey about participant attitudes. d) whether participants enroll in a political science course.

Alpha fetoprotein

A) is present in the blood of neonatal rats. B) does not readily penetrate the blood-brain barrier. C) deactivates circulating estradiol. D) all of the above E) none of the above