Explanation
Reliability refers to the consistency, stability, and reproducibility of research findings or measurements. A reliable method produces similar results when repeated under comparable conditions.
In empirical social research, reliability is important for ensuring that measurements are not random, inconsistent, or dependent on accidental influences. Common forms include test-retest reliability, interrater reliability, and internal consistency.
High reliability does not automatically guarantee validity. A measurement may produce highly consistent results while still failing to measure the intended concept accurately.
Theoretical Reference
Reliability is a key concept in empirical social research, survey methodology, and statistical analysis. Positivist traditions particularly emphasize standardized procedures and reproducible measurements in scientific research.