Examlex
The gate control theory of pain says that pain impulses traveling through the lateral spinothalamic tract can be suppressed by increased activity of the
Population
The total number of individuals or entities within a specified area or group which could be studied or observed.
Internal Validity
The characteristic of a study that allows us to conclude that the manipulation of the independent variable caused the observed changes in the dependent variable.
Independent Variable
The variable in an experiment that is manipulated by the researcher to examine its impact on the dependent variable.
Dependent Variable
In research, the variable being tested and measured, expected to change as a result of manipulations to the independent variable.
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