Effect of defect rate on inspection accuracy

Abstract

80 INSPECTORS EXAMINED MATERIALS CONTAINING DEFECTS AT 4 DIFFERENT RATES. THE TASK USED HAD BEEN SHOWN IN A SERIES OF PREVIOUS STUDIES TO BE REPRESENTATIVE OF VARIOUS VISUAL INSPECTION TASKS. PERFORMANCE MEASURES WERE ANALYZED TO DETERMINE THE RELATIONSHIP BETWEEN DEFECT RATE AND INSPECTION ACCURACY. FINDINGS INDICATE THAT INSPECTION ACCURACY DECREASES WITH REDUCTIONS IN DEFECT RATE. THE PERCENTAGE OF TRUE DEFECTS DETECTED SIGNIFICANTLY DECREASED AND THE PERCENTAGE OF FALSE REPORTS SIGNIFICANTLY INCREASED. (PsycInfo Database Record (c) 2025 APA, all rights reserved)