Quiz 1 Flashcards
taking an abstract concept and defining it to make it measurable
operationalization
characteristic that can take on more than one value
variable
manipulated variable or measured variable in observational study
independent
variable measured in response to independent
dependent
statistically controlled variable to eliminate it as a potential explanation for results (confound)
control variable
hypothesis of interest
research hypothesis
hypothesis that complements research
null
null + research hypotheses =
all possible outcomes
distortion of the effect of exposure on the disease by that of a third factor
confounding
confounder has to be associated with the exposure or disease?
both
best way to control confounders
randomization
confounders can be controlled in these phases
design, analysis
assigning a numeric value to something
measurement
type of data where values represent categories
qualitative
type of data where values represent counts or measurements
quantitative