An Introduction to Community Health 7th Edition by James McKenzie,Robert Pinger,Jerome Kotecki

تمرين 18

Visit your campus library and locate the American Journal of Epidemiology. Examine several recent issues, taking note of the different types of articles as they appear in the table of contents. Select six articles and read the abstracts. On a piece of paper, list the titles of these articles. Were these descriptive, analytic, or experimental studies? After each title that you have listed, put either the letter D (descriptive), A (analytic), or E (experimental) to denote the type of study that you examined.