Examlex
Evaluate the expression.
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Reliability Coefficient
The reliability coefficient is a measure that assesses the consistency or stability of a test score or instrument over time.
Correlation
Correlation is a statistical measure that expresses the extent to which two variables change together. If the variables tend to increase and decrease in relation to each other, the correlation is positive; if one increases as the other decreases, it is negative.
Construct Validity
The degree to which a measurement device accurately measures the theoretical construct it is designed to measure.
Reliability
The consistency and stability of measurements or assessments over time.
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