Examlex
Define the 95% confidence interval.
Construct Validity
The extent to which a test measures what it claims to be measuring, indicating the accuracy of the construct it represents.
Operational Definitions
Observable operations, procedures, and measurements that are based on the independent and dependent variables.
Internal Validity
The extent to which a study can demonstrate a causal relationship between variables, minimizing the influence of external factors.
Independent Variable
A variable that is manipulated or changed in an experiment to observe its effects on a dependent variable.
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