Accuracy of manual entries in data-collection devices

Abstract

EXAMINED THE ACCURACY OF MANUALLY RECORDED MESSAGES ON THE ACCURACY OF DATA COLLECTION IN PRODUCTION INFORMATION SYSTEMS. MANUAL MESSAGES WHICH WERE 3-, 6-, AND 10-DIGITS LONG CONTRIBUTED SIGNIFICANTLY DIFFERENT QUANTITIES OF BOTH TOTAL AND RESIDUAL ERRORS. IMPOSITION OF A TIME RESTRAINT DID NOT AFFECT THE TOTAL QUANTITY OF MISTAKES, BUT IT DID CONTRIBUTE TO SIGNIFICANT DIFFERENCES IN RESIDUAL ERRORS, AFFECTING BOTH THE ABILITY TO DETECT AND CORRECT MISTAKES AT POINT OF ENTRY. ABOUT 1/2 OF ALL THE MISTAKES IN OBSERVED MANUAL MESSAGES UNDER FIELD AND LABORATORY CONDITIONS WERE CAUSED BY SINGLE-DIGIT SUBSTITUTION. OMISSION OF A DIGIT ACCOUNTED FOR ANOTHER 20%. TRANSPOSITION MISTAKES WERE MORE FREQUENTLY ENCOUNTERED IN THE LABORATORY EXPERIMENT THAN IN FIELD STUDIES BUT WERE A LESS IMPORTANT CONTRIBUTOR TO INACCURATE DATA RECORDING. (PsycInfo Database Record (c) 2025 APA, all rights reserved)