External Validity is ONLY concerned with whether the results from a study can be generalized back to the population of interest.

From an "ethgender" point of view, which of the following adolescents has the lowest self-esteem?

a) African American male b) Native American male c) Hispanic female d) Asian female

In the text example of narcolepsy, the Doberman dog showed cataplexy while

A) playing with each other. B) eating. C) drinking. D) engaging in reproductive behavior. E) running along the beach.