Couples who are equally responsible for child care report increased levels of relationship dissatisfaction.

the science of behavior and mental processes.”

the view that psychology should be an objective science that studies behavior without reference to mental processes.

the selective pruning of unused neurons and connections.

They are more likely to befriend girls who engage in risky sexual behavior.

imprint to the first moving object they observe.

shift over time and differ from one culture to another.

adopting whatever values and expectations their parents recommend.”

Sexual orientation of the parents has no bearing on a child’s well-being.”

form a close attachment to the first monkey with whom they experience bodily contact.