Biomedical subjects

Kraig L Schell

Publications and source records attributed to Kraig L Schell.

4 recordsLinked to original sources

PubMed2004

Self-regulation, engagement, motivation, and performance in a simulated quality control task.

This study examined how self-regulation and task-related motivation were related to the accuracy of error detection and task engagement in a simulated quality control task that mimicked prescription-checking behavior in a pharmacy. Ninety-one participants completed measures of self-regulation, task engagement, and task-related motivation and then checked 80 simulated scripts with inserted error ratios ranging from 26% to 38%. Motivation and task engagement were assessed at the beginning of the task, the midpoint of the task, and after the task was over. Performance was measured in terms of sensitivity (error detections) and specificity (false alarm responses). Results indicated that motivation was correlated with higher sensitivity, while self-regulation was correlated with lower specificity. Higher mid-task motivation and higher self-regulation were also predictive of greater task engagement at the midpoint of the task only. Results are discussed and future research directions are proposed.

Adult↗

PubMed2004

Quality control pharmacy tasks: big five personality model and accuracy of error detection.

The relationships between extraversion, conscientiousness, neuroticism, and performance were examined in the context of an error detection task completed under stable and shifting workload conditions. 114 participants checked two sets of 40 fictitious prescriptions for errors. Errors were inserted at rates varying from 26% to 38%. Workload was manipulated by altering the amount of time allowed to complete each set. The stable workload group had 45 min. per set, the workload up-shift group had 60 min. for the first set and 30 min. for the second set. Performance was measured using hit rates and false alarms. Analysis indicated that extraversion and conscientiousness were correlated with hit rates, but only in the stable workload condition. Results are discussed and research directions are considered.

Adolescent↗

PubMed2003

Improving accuracy in simulated pharmacy assembly tasks using workspace interventions to enhance the cognitive environment.

In this study, the error-reducing effectiveness of two work-environment interventions was examined in a simulated pharmacy task. 110 participants worked for 3 to 4 hours filling approximately 110 orders for simulated drugs in a laboratory-based, controlled environment. One group of participants used a monitor-mounted copy strip to enhance data entry, and another group used the copy strips as well as labeled product sleeves on stock bottles to enhance product selection. Results indicated that participants who worked using copy strips as well as participants who worked using both copy strips and product sleeves were more accurate in their order-filling performance than participants in the control condition. However, participants in the copy strip and the copy strip/sleeve conditions did not differ from one another in accuracy. Further research ideas and potential explanations of these data are discussed.

Achievement↗

PubMed2003

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

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.

Adult↗