91Ó°ÊÓ

(Optional topic) A researcher is conducting a written survey about people's attitudes toward walking as an exercise option at a large shopping mall that supports a walking program. The survey is anonymous (without codes, names, or other information), and volunteers may complete the survey and place it in a box at a shopping mall exit. Which of the following is the most important ethical issue that the researcher addressed in planning the research? a. Providing a large sample size b. Confidentiality of the individual subject's responses c. Minimizing the risk of emotional distress from the questions themselves

(Optional topic) The purpose of informed consent is a. to obtain a signature from a study subject in order to protect the investigator, the study staff, and the institution. b. to obtain a signature from a study subject in order to document his or her agreement to participate in research. c. to provide a potential subject with appropriate information in an appropriate manner and allow that person to make an informed decision about participation in research.