Today the most commonly used antidepressants are the class of drugs known as:

A testable prediction about processes that can be observed and measured is referred to as a(n) _____

a. theory b. hypothesis c. opinion d. hunch

According to cognitive-developmental theory, a scheme is __________

A) an internal process that occurs apart from any contact with the environment B) the understanding that objects continue to exist when out of sight C) the ability to copy the behavior of others D) an organized way of making sense of experience