Hands-free administration of subjective workload scales: acceptability in a surgical training environment

Applied Ergonomics
C Melody CarswellStephen Strup

Abstract

Subjective workload measures are usually administered in a visual-manual format, either electronically or by paper and pencil. However, vocal responses to spoken queries may sometimes be preferable, for example when experimental manipulations require continuous manual responding or when participants have certain sensory/motor impairments. In the present study, we evaluated the acceptability of the hands-free administration of two subjective workload questionnaires - the NASA Task Load Index (NASA-TLX) and the Multiple Resources Questionnaire (MRQ) - in a surgical training environment where manual responding is often constrained. Sixty-four undergraduates performed fifteen 90-s trials of laparoscopic training tasks (five replications of 3 tasks - cannulation, ring transfer, and rope manipulation). Half of the participants provided workload ratings using a traditional paper-and-pencil version of the NASA-TLX and MRQ; the remainder used a vocal (hands-free) version of the questionnaires. A follow-up experiment extended the evaluation of the hands-free version to actual medical students in a Minimally Invasive Surgery (MIS) training facility. The NASA-TLX was scored in 2 ways - (1) the traditional procedure using participant-specif...Continue Reading

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Citations

Jun 10, 2015·American Journal of Surgery·Jonathan S AbelsonGregory Dakin
Jul 16, 2015·Surgical Endoscopy·Jesse S L HuDavide Lomanto
Feb 22, 2018·The British Journal of Surgery·R D DiasS J Yule
Feb 28, 2018·Scientific Reports·Somayeh B ShafieiKhurshid A Guru
Mar 28, 2020·Journal of UOEH·Shinji Miyake
Nov 1, 2018·PloS One·Somayeh B ShafieiKhurshid A Guru
Oct 6, 2017·Journal of Neural Engineering·R E Alcaide-AguirreJ E Huggins
Apr 22, 2014·Human Factors·Victor S FinomoreDavid B Boles

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