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Flashcards in Quiz 2 Deck (12)
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1

What is the hawthorne effect?

participants' behavioral changes as a result of their knowledge of being in a study

2

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

3

What is a positive association?

when the value of one variable increases, so does the value of the other variable

4

What is a negative association?

when the value of one variable increases, the value of the other variable decreases

5

What is dose-response?

a correlative association between exposure and effect

6

What is descriptive epidemiology?

who, what, when, where, and how many?

7

What are the criteria of causality?

Biological gradient
Consistency
Specificity
Strength
Temporality
Experiment
Coherence
Analogy
Plausibility

8

What is the epidemiological triangle?

a model that describes the etiology of infectious diseases which includes the host, agent, and the environment

9

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

10

What is an example of a descriptive study?

John Graunt collecting descriptive characteristics of birth and death data to describe populations vital stats

11

Whats an analytic study?

studies the association between exposures and health conditions

12

Whats an example of an analytic study?

John snow-- suspecting the contamination in the water leading to the cholera outbreak