Participants
Women (The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008. This study was approved by the Human Subjects Committee of the IRB at both institutions where data were collected, and participants provided written informed consent prior to study participation. Participants were paid $75, $50, $100, and $100 across the four visits.