Auditing & Assurance › Analytical Procedures
What is the difference between the precision and reliability of an analytical procedure?
AdvancedAnswer
Precision is how closely the expectation predicts the recorded amount—more precise expectations (disaggregated, using strong relationships) detect smaller misstatements. Reliability concerns the trustworthiness of the data used to build the expectation. A procedure is only as effective as both: reliable data and a precise expectation give strong substantive evidence.
Real-world example Monthly, product-level expectations (high precision) from independent data (high reliability) can detect a smaller misstatement than an annual total.