Which term describes the reproducibility of repeated measurements of the same quantity?

The term that describes the reproducibility of repeated measurements of the same quantity is precision. Precision refers specifically to the consistency or repeatability of measurements under unchanged conditions. When measurements are precise, they yield similar results when the same quantity is measured multiple times, indicating that the variability in the measurements is low.

This concept is crucial in scientific experiments and data collection, as it ensures that the results are dependable and can be reproduced. Precision does not account for how close the measurements are to the true value of the quantity being measured, which is why it is distinct from accuracy, which measures how close a measurement is to the actual or true value. Reliability often refers to the consistency of results over time or across different conditions, and validity focuses on how well a test or measurement assesses the specific concept it's intended to measure. Therefore, precision is the most appropriate term for describing reproducibility in repeated measurements.