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BI Project 2.1.1.
Terms in this set (31)
Experimental Studies Description
A study that involves the control and manipulation of variables
Also called the "Gold Standard"
Experimental Studies when conducted
Conducted in controlled conditions with no bias
Pros of Experimental
Reliable, valid, and most common
Cons of Experimental
Cannot be used for ethical concerns
What type of relationship do experimental studies have?
One variable is the cause of another
Observational Studies Description
A study that involves the observation of individuals or measurement of outcomes.
Observational Studies when conducted
They are used when it is not ethically possible to do an experimental study or for an epidemiological, psychological, or sociological.
Pros of Observational
Not invasive and may be used when variables are harmful to subject
Cons of Observational
Variables aren't being controlled, so not reliable
Quasi-experiment is another name for...
What relationship is observational
Degree of relationship between 2 variables
Designs studies that minimize errors or bias in process
One group receives treatment and another does not. Receives placebo
The control and treatment group are chosen at random
When participants or investigators have no knowledge of treatment or condition
Participant does not know about treatment or not
Researcher nor participants has information
Neither the participant, researcher, or response gatherer knows who has been allocated where.
A study in which another researcher can perform same experiment and generate same results.
A study where the results describe the real world.
Variable that was not accounted for in the experiment. It prevents the interpretation of the experiment.
Longitudinal study is also called...
Research study that compares an outcome in a group of very similar people that only have on difference which is being studied
Cohort Studies when conduced
It is used for longer term research and data
Prospective Cohort Studies
A study where the outcome has not occured in the beginning of the study, looking for development.
Retrospective Cohort Studies
Outcomes have occurred as study begins, looking back in history
Involves multiple observations that determine how variables affect each other at a specific time, like a population on Nov 1st at 2 am
Involves multiple observations that help determine how variables affect each other at same time and period.
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