Human Factors Engineer
Minitab / PowerPoint
This study sets out to analyze working memory differences between novices and experts and associated effects of visual aids on performance. We want to know if displays showing vital signs such as temperature, blood pressure, and oxygen saturation and have a visual representation to accompany these numbers to allow for easier diagnosis of abnormal values?
Participants been split into two groups experts (physicians) and novices (students with little to no medical training). Each participant completed four tasks, two which asked them to identify abnormal canine vital signs (given a range of normal values) and two which asked them to identify abnormal weather statistics in a given area over a specified period of time.
The primary outcome measures were total time on task for each of the four sets, ability to identify abnormal values, and overall percentage of correct responses. The working hypotheses were as follows:
A 2*2*2 mixed-model ANOVA was computed for each outcome measures.