Examlex
Rules created by agencies rather than by Congress but which nevertheless carry the same force as congressional laws are normally referred to as
Volunteer Bias
The tendency for volunteers, such as in research studies, to differ from the general population in significant ways, potentially skewing results.
Random Sampling
A method of selecting a sample from a population in which every individual has an equal chance of being chosen.
Correlation Coefficient
A number between −1.00 and +1.00 that indicates the direction (negative or positive) and extent (from none to perfect) of the relationship between two variables.
Independent Variable
In research, this is the condition or factor that is intentionally changed to observe its impact on an outcome.
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