Biomaterial Database

Signal probability effects on error detection performance in a quality control task. 2003

Lisa Bilsing-Palacio, and Kraig L Schell

Angelo State University, San Angelo, TX 76909, USA.

This study was designed to examine the influence of signal probability on detection accuracy in a quality control task patterned after the checking of prescriptions in a pharmacy. Signal probability was defined as the ratio of erroneous scripts to correct scripts. 91 participants were either exposed to signal probabilities ranging from 26 to 30% ("low probability") or 34 to 38% ("high probability") while checking two sets of 40 simulated scripts for accuracy. Wrong item, wrong number, and wrong label information errors were possible, and performance was measured in terms of sensitivity (percentage of errors detected) and specificity (percentage of correct orders accepted). Analysis indicated that sensitivity was significantly worse for participants in the high signal probability condition, but specificity was not significantly different between signal probability conditions. Connections to existing theory and future directions for research are discussed.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008508	Medication Errors	Errors in prescribing, dispensing, or administering medication with the result that the patient fails to receive the correct drug or the indicated proper drug dosage.	Drug Use Error,Errors, Medication,High-Alert Drug Error,High-Alert Medication Error,LASA Medication Errors,Look-Alike Drug Name Errors,Look-Alike Sound-Alike Drug Errors,Look-Alike Sound-Alike Drug Substitution Errors,Look-Alike Sound-Alike Medication Errors,Lookalike Drug Name Errors,Lookalike Soundalike Drug Errors,Lookalike Soundalike Drug Substitution Errors,Lookalike Soundalike Medication Errors,Drug Error, High-Alert,Drug Use Errors,Error, Drug Use,Error, LASA Medication,Error, Medication,High Alert Drug Error,High Alert Medication Error,High-Alert Drug Errors,High-Alert Medication Errors,LASA Medication Error,Look Alike Drug Name Errors,Look Alike Sound Alike Drug Errors,Look Alike Sound Alike Drug Substitution Errors,Look Alike Sound Alike Medication Errors,Medication Error,Medication Error, High-Alert,Medication Error, LASA,Medication Errors, High-Alert,Medication Errors, LASA
D010604	Pharmacy	The practice of compounding and dispensing medicinal preparations.	Forensic Pharmacy,Pharmacy Practice Patterns,Forensic Pharmacies,Pattern, Pharmacy Practice,Patterns, Pharmacy Practice,Pharmacies, Forensic,Pharmacy Practice Pattern,Pharmacy, Forensic,Practice Pattern, Pharmacy,Practice Patterns, Pharmacy
D011307	Drug Prescriptions	Directions written for the obtaining and use of DRUGS.	Drug Prescribing,Drug Prescription,Drug Prescribings,Prescribing, Drug,Prescribings, Drug
D011336	Probability	The study of chance processes or the relative frequency characterizing a chance process.	Probabilities
D011786	Quality Control	A system for verifying and maintaining a desired level of quality in a product or process by careful planning, use of proper equipment, continued inspection, and corrective action as required. (Random House Unabridged Dictionary, 2d ed)	Control, Quality,Controls, Quality,Quality Controls
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012680	Sensitivity and Specificity	Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	Specificity,Sensitivity,Specificity and Sensitivity