For boys, the event that most closely parallels menarche is the

The communication model of persuasion identifies ______ key elements people use to change attitudes and behavior

a. two b. three c. four d. five

Under what circumstances can a researcher ask for a waiver of the informed consent process?

A) When working with children it's only important to secure the parent's permission. In such cases, minors are obligated to participate; thus, the researcher can waive their consent process. B) Because prisoners have lost most rights, one can bypass the general rules for informed consent when working with such populations. C) Research in which the experimenter does not come into direct contact with the participants, such as passively observing families in shopping malls on a Friday evening. D) Research in which participants would not likely grant approval, such as in a mental health facility.