Human factors in design

Paper session

会議の名前
CHI 2020
Social Acceptability in HCI: A Survey of Methods, Measures, and Design Strategies
要旨

With the increasing ubiquity of personal devices, social acceptability of human-machine interactions has gained relevance and growing interest from the HCI community. Yet, there are no best practices or established methods for evaluating social acceptability. Design strategies for increasing social acceptability have been described and employed, but so far not been holistically appraised and evaluated. We offer a systematic literature analysis (N=69) of social acceptability in HCI and contribute a better understanding of current research practices, namely, methods employed, measures and design strategies. Our review identified an unbalanced distribution of study approaches, shortcomings in employed measures, and a lack of interweaving between empirical and artifact-creating approaches. The latter causes a discrepancy between design recommendations based on user research, and design strategies employed in artifact creation. Our survey lays the groundwork for a more nuanced evaluation of social acceptability, the development of best practices, and a future research agenda.

受賞
Honorable Mention
キーワード
Research methods
social acceptability
literature analysis
著者
Marion Koelle
University of Oldenburg & Saarland University, Saarland Informatics Campus, Oldenburg & Saarbrücken, Germany
Swamy Ananthanarayan
University of Oldenburg, Oldenburg, Germany
Susanne Boll
University of Oldenburg, Oldenburg, Germany
DOI

10.1145/3313831.3376162

Framing Effects Influence Interface Feature Decisions
要旨

Studies in psychology have shown that framing effects, where the positive or negative attributes of logically equivalent choices are emphasised, influence people's decisions. When outcomes are uncertain, framing effects also induce patterns of choice reversal, where decisions tend to be risk averse when gains are emphasised and risk seeking when losses are emphasised. Studies of these effects typically use potent framing stimuli, such as the mortality of people suffering from diseases or personal financial standing. We examine whether these effects arise in users' decisions about interface features, which typically have less visceral consequences, using a crowd-sourced study based on snap-to-grid drag-and-drop tasks (n = 842). The study examined several framing conditions: those similar to prior psychological research, and those similar to typical interaction choices (enabling/disabling features). Results indicate that attribute framing strongly influences users' decisions, that these decisions conform to patterns of risk seeking for losses, and that patterns of choice reversal occur.

キーワード
Framing effects
interface decisions
attribute framing
risky choice framing
著者
Andy Cockburn
University of Canterbury, Christchurch, New Zealand
Blaine Lewis
University of Toronto, Toronto, ON, Canada
Philip Quinn
Google, Mountain View, CA, USA
Carl Gutwin
University of Saskatchewan, Saskatoon, SK, Canada
DOI

10.1145/3313831.3376496

Checklist Design Reconsidered: Understanding Checklist Compliance and Timing of Interactions
要旨

We examine the association between user interactions with a checklist and task performance in a time-critical medical setting. By comparing 98 logs from a digital checklist for trauma resuscitation with activity logs generated by video review, we identified three non-compliant checklist use behaviors: failure to check items for completed tasks, falsely checking items when tasks were not performed, and inaccurately checking items for incomplete tasks. Using video review, we found that user perceptions of task completion were often misaligned with clinical practices that guided activity coding, thereby contributing to non-compliant check-offs. Our analysis of associations between different contexts and the timing of check-offs showed longer delays when (1) checklist users were absent during patient arrival, (2) patients had penetrating injuries, and (3) resuscitations were assigned to the highest acuity. We discuss opportunities for reconsidering checklist designs to reduce non-compliant checklist use.

キーワード
Checklist design
medical checklist
dynamic checklist
mixed methods
video review
trauma resuscitation
著者
Leah Kulp
Drexel University, Philadelphia, PA, USA
Aleksandra Sarcevic
Drexel University, Philadelphia, PA, USA
Yinan Zheng
Children's National Medical Center, Washington, DC, USA
Megan Cheng
Children's National Health System, Washington, DC, USA
Emily Alberto
Children's National Medical Center, Washington, DC, USA
Randall Burd
Children's National Medical Center, Washington, DC, USA
DOI

10.1145/3313831.3376853

Comparing Smartphone Speech Recognition and Touchscreen Typing for Composition and Transcription
要旨

Ruan et al. found transcribing short phrases with speech recognition nearly 200% faster than typing on a smartphone. We extend this comparison to a novel composition task, using a protocol that enables a controlled comparison with transcription. Results show that both composing and transcribing with speech is faster than typing. But, the magnitude of this difference is lower with composition, and speech has a lower error rate than keyboard during composition, but not during transcription. When transcribing, speech outperformed typing in most NASA-TLX measures, but when composing, there were no significant differences between typing and speech for any measure except physical demand.

キーワード
speech recognition
text entry
mobile phones
著者
Margaret Foley
University of Waterloo, Waterloo, ON, Canada
Géry Casiez
Université de Lille, University of Waterloo, Inria, Institut Universitaire de France, Villeneuve d'Ascq, France
Daniel Vogel
University of Waterloo, Waterloo, ON, Canada
DOI

10.1145/3313831.3376861

動画
RCEA: Real-time, Continuous Emotion Annotation for Collecting Precise Mobile Video Ground Truth Labels
要旨

Collecting accurate and precise emotion ground truth labels for mobile video watching is essential for ensuring meaningful predictions. However, video-based emotion annotation techniques either rely on post-stimulus discrete self-reports, or allow real-time, continuous emotion annotations (RCEA) only for desktop settings. Following a user-centric approach, we designed an RCEA technique for mobile video watching, and validated its usability and reliability in a controlled, indoor (N=12) and later outdoor (N=20) study. Drawing on physiological measures, interaction logs, and subjective workload reports, we show that (1) RCEA is perceived to be usable for annotating emotions while mobile video watching, without increasing users' mental workload (2) the resulting time-variant annotations are comparable with intended emotion attributes of the video stimuli (classification error for valence: 8.3%; arousal: 25%). We contribute a validated annotation technique and associated annotation fusion method, that is suitable for collecting fine-grained emotion annotations while users watch mobile videos.

キーワード
emotion
annotation
mobile
video
real-time
continuous
labels
著者
Tianyi Zhang
Centrum Wiskunde & Informatica and Delft University of Technology, Amsterdam & Delft, Netherlands
Abdallah El Ali
Centrum Wiskunde & Informatica (CWI), Amsterdam, Netherlands
Chen Wang
Xinhuanet, Beijing, China
Alan Hanjalic
Delft University of Technology, Delft, Netherlands
Pablo Cesar
Centrum Wiskunde & Informatica and Delft University of Technology, Amsterdam & Delft, Netherlands
DOI

10.1145/3313831.3376808

動画