Validity ensures that measurements accurately reflect the intended construct or concept. Reliability ensures that measurements produce consistent and reproducible results when repeated. Validity examines both random and systematic error that impact the accuracy of measurements. Now, let’s get to Reliability vs Validity: Major differences between Reliability and Validity Reliability Validity Reliability addresses random error and measurement error that affect the consistency of measurements. Validity: Validity refers to the extent to which a measurement accurately measures what it intends to measure.Reliability: Reliability refers to the consistency and stability of measurements or data.
The main difference between reliability and validity is that reliability is concerned with the precision and reproducibility of measurements whereas validity is concerned with the truthfulness and accuracy of measurements.īefore we move to more differences, let’s first understand Reliability and Validity:
