The scientific study of the frequency and distribution of disorders within a population is defined as

What is the most important consideration in human development research in terms of ethical standards? That the participants will ____

a. gain knowledge about themselves b. have fun participating c. not be harmed d. learn something from the study

The Media Practice Model proposes that adolescents' media use is ________

a. passive b. rare compared to adults' media use c. frequent d. active