Flashcards in Quiz 2 Deck (12)
What is the hawthorne effect?
participants' behavioral changes as a result of their knowledge of being in a study
What does confounding mean?
Distortion of an association between an exposure and an out- come because of the influence of a third variable that was not considered in the study design or analysis
What is a positive association?
when the value of one variable increases, so does the value of the other variable
What is a negative association?
when the value of one variable increases, the value of the other variable decreases
What is dose-response?
a correlative association between exposure and effect
What is descriptive epidemiology?
who, what, when, where, and how many?
What are the criteria of causality?
What is the epidemiological triangle?
a model that describes the etiology of infectious diseases which includes the host, agent, and the environment
What is a descriptive study?
studies that are concerns with characterizing the amount and distribution of a disease within a population, they aim to find a pattern
What is an example of a descriptive study?
John Graunt collecting descriptive characteristics of birth and death data to describe populations vital stats
Whats an analytic study?
studies the association between exposures and health conditions