How High is High? A Meta-Analysis of NASA-TLX Global Workload Scores

Grier, Rebecca A.

doi:10.1177/1541931215591373

Cited by 299 publications

(216 citation statements)

References 16 publications

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“…a NASA raw-TLX questionnaire [Hart and Staveland, 1988;Grier, 2015], with a scale set from 0 (very low) to 100 (very high). Finally, participants completed a qualitative questionnaire and were invited to discuss their experiences interpreting the logical forms.…”

Section: User Study Presentationmentioning

confidence: 99%

Evaluating the Interpretability of the Knowledge Compilation Map: Communicating Logical Statements Effectively

Booth¹,

Muise

Shah³

2019

Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence

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Knowledge compilation techniques translate propositional theories into equivalent forms to increase their computational tractability. But, how should we best present these propositional theories to a human? We analyze the standard taxonomy of propositional theories for relative interpretability across three model domains: highway driving, emergency triage, and the chopsticks game. We generate decision-making agents which produce logical explanations for their actions and apply knowledge compilation to these explanations. Then, we evaluate how quickly, accurately, and confidently users comprehend the generated explanations. We find that domain, formula size, and negated logical connectives significantly affect comprehension while formula properties typically associated with interpretability are not strong predictors of human ability to comprehend the theory.

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Section: User Study Presentationmentioning

confidence: 99%

Evaluating the Interpretability of the Knowledge Compilation Map: Communicating Logical Statements Effectively

Booth¹,

Muise

Shah³

2019

Proceedings of the Twenty-Eighth International Joint Conference on Artificial Intelligence

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“…The average task load index exacted from the NASA-TLX was 34.2% (SD: 17.7), indicating a low to moderate effort [22]. We used an MCMC method analogous to the above to analyze the 5-point Likert scale questionnaires.…”

Section: Post-study Questionnairesmentioning

confidence: 99%

Breeze

Frey

Grabli

Slyper

et al. 2018

Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems

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Digitally presenting physiological signals as biofeedback to users raises awareness of both body and mind. This paper describes the effectiveness of conveying a physiological signal often overlooked for communication: breathing. We present the design and development of digital breathing patterns and their evaluation along three output modalities: visual, audio, and haptic. We also present Breeze, a wearable pendant placed around the neck that measures breathing and sends biofeedback in real-time. We evaluated how the breathing patterns were interpreted in a fixed environment and gathered qualitative data on the wearable device's design. We found that participants intentionally modified their own breathing to match the biofeedback, as a technique for understanding the underlying emotion. Our results describe how the features of the breathing patterns and the feedback modalities influenced participants' perception. We include guidelines and suggested use cases, such as Breeze being used by loved ones to increase connectedness and empathy.Signals such as heart rate and electrodermal activity (EDA), which measures perspiration, can also serve as proxies for social interactions [37]. Breathing presents an advantage over such signals because it can easily be modulated. In the field of human-computer interaction (HCI), breathing and other physiological signals have been used mainly as input [35,39]. Instead, we employ these technologies to support humanhuman communication as advocated by [13].We envision a future where interfaces can "connect" people at a distance, enforcing a bond between close ones through shared wearable biofeedback. While trying to develop such an arXiv:1802.04995v1 [cs.HC]

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“…Greater drag distance is indicative of more secondary task interference. Grier (2015) provides normative workload values for process control HFE studies.…”

Section: Measures Of Secondary Task Performancementioning

confidence: 99%

Development and evaluation of the conceptual design for a liquid radiological waste system in an advanced hybrid control room

Kovesdi

Spielman

Hill

et al. 2018

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This research is a part of the United States (U.S.) Department of Energy-sponsored Light Water Reactor Sustainability (LWRS) Program conducted by Idaho National Laboratory in close collaboration with representatives of the nuclear industry. The joint goal is to provide the technical foundations for licensing and managing the long-term, safe, and economical operation of current nuclear power plants (NPPs). Because NPPs maintain outdated or obsolete equipment, it is common practice to replace wornout equipment on an as-needed basis. This results in a series of like-for-like replacements of components on the control boards that address only the immediate need to replace equipment. Such upgrades rarely represent an encompassing or systematic vision for control room modernization and do not add the benefit of enhanced support for operators in the control room, missing the opportunity to reduce operation and maintenance costs through enhanced efficiency. The purpose of the research described in this report is to provide guidance on how to realize these opportunities by designing control room human-system interfaces (HSIs) with advanced capabilities in mind. Further, this work seeks to ensure that control room modernizations are undertaken with a sound understanding of the impacts to human operators and are designed based on state-of-the-art human factors principles. The goal of the research is to provide an industry-wide approach and road map for effective modernization that not only addresses obsolescence but provides guidance for enhancing the economic viability of the existing fleet. This can be done by improving efficiency and safety through effective design of the control room, incorporating human factors principles across the entire design. This report describes the conceptual design of the liquid radiological waste system and reports on several research activities that inform the design philosophy. Finally, this document presents recommended updates to the original design philosophy based on those findings.iv v We would also like to thank Micheal Hildebrandt, Robert McDonald, and Jens-Patrick Langstrand at the Institute of Energy Technology who were integral to the experimental design for the operator workshop by providing technical expertise and support with the micro-task data collection activities. Additionally, we would like to thank Jacob Lehmer, Maira Orozco, Tyson Hansen, and Brandon Rice of INL for their support in designing the prototypes, assistance in the study design, and help with implementation of prototypes. This report was made possible through funding by the United States Department of Energy Light Water Reactor Sustainability Program. Lastly, we would like to thank Alison Hahn of the Department of Energy and Ken Thomas, Craig Primer, and Bruce Hallbert of Idaho National Laboratory for championing this effort. vi vii CONTENTS ABSTRACT .

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How High is High? A Meta-Analysis of NASA-TLX Global Workload Scores

Cited by 299 publications

References 16 publications

Evaluating the Interpretability of the Knowledge Compilation Map: Communicating Logical Statements Effectively

Evaluating the Interpretability of the Knowledge Compilation Map: Communicating Logical Statements Effectively

Breeze

Development and evaluation of the conceptual design for a liquid radiological waste system in an advanced hybrid control room

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