NURS 415 Exam 3 (100% correct answers)

what is the purpose of epidemiologic research? correct answers 1. identify community/ public health problems 2. describe natural history and etiology of diseases What are observational studies? correct answers can be either descriptive or analytical What are descriptive studies? correct answers study in which the investigator observes rather than influences exposure and disease among participants these studies provide the foundation for the development and testing of hypotheses what type of study is frequently used in public health and why? correct answers descriptive studies they are designed to acquire more info about characteristics of health (or disease) as they pertain to person, place, and time what are the different research methods used for descriptive studies? correct answers - case studies - survey studies - cross sectional studies What are case studies? correct answers involve an in depth analysis of an individual, group, or social institution - in public health the case study is usually the first clue that a problem may exist what is a survey research/study? correct answers used to collect data - focuses on the collection of info regarding the status quo of some situations by questionnaire Orr by interviews with a sample of respondents what is the difference between dependent, independent and demographic variable? correct answers dependent- the response, behavior, or outcome presumed to be affected by the independent variable independent- treatment or experimental activity that is manipulated by the researcher to test its effect on the dependent variable demographic- characteristics or attributes that are collected to describe the sample