David is afraid that the results from his experiment may not be able to be replicated in real life situations. David is concerned that his experiment lacks which type of validity?

Which of the following is NOT one of the four components of the sexual response cycle as proposed by Masters and Johnson?

a) plateau phase b) arousal phase c) resolution phase d) orgasm

Programs designed to raise the self-esteem of adolescents have been shown to

A) lead to higher school achievement. B) lead to fewer problem behaviors. C) lead to better personal relationships. D) None of the above.