Experimental
100
All true experiments must meet these three criteria.
What are Manipulation, Randomization and Control?
200
This is the variable manipulated by the researcher in an experiment. It is the "cause" that lead to an "effect."
What is an Independent Variable?
300
Only an experiment can demonstrate this through control and manipulation and random assignment to groups.
What is a cause-and-effect relationship between variables?
400
Any variable that exists within a study other than the variables being studied.
What is an extraneous variable?
500
In a research study, a condition that involves no treatment or a placebo treatment.
What is a control group?
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