Examlex
A researcher manipulates a set of conditions, or variables, and observes the effect of this manipulation on participants' behavior. This describes:
Definitional
Pertaining to the precise meaning or nature of a term or concept.
Formula
A mathematical expression that calculates or represents a relationship between different quantities.
Sum of Squares
The sum of the squared differences between each observation and the overall mean, used in various statistical calculations.
Population Variance
Average squared deviation of a score from the population mean.
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