Tick Tock, Tick Tock! An Experimental Study on the Time Pressure Effect on Omission Neglect

2016 ◽  
Vol 28 (5) ◽  
pp. 332-346 ◽  
Author(s):  
Rejane Alexandrina Domingues Pereir do Prado ◽  
Evandro Luiz Lopes
Author(s):  
Kip E. Johnson ◽  
James K. Kuchar ◽  
Charles M. Oman

An experimental study was performed to evaluate several types of automation for time-pressured replanning tasks. Subjects modified a two-dimensional route using waypoint manipulation on a computer screen in response to a sudden change in the displayed environment while having access to one of four types of automation. In addition to a baseline case without automation, subjects received automated assistance that either reduced hazard exposure, ensured meeting time-to-target and fuel constraints, or combined hazard avoidance with time and fuel constraints. Time pressure was imposed by requiring the route to be replanned within four different time limits of less than one minute. Results show that the benefit of automation decreased as time pressure was relaxed. Subjects showed reticence to deviate from highly automated route suggestions even when significant improvements were still possible. In addition, partial automation induced more errors than in cases with no automation, highlighting the potential negative effects of introducing automation.


2017 ◽  
Vol 37 (1) ◽  
pp. 86-94 ◽  
Author(s):  
Yaya Zhen ◽  
Zhirong Wang ◽  
Junhui Gong

Author(s):  
Christian Müller ◽  
Barbara Großmann-Hutter ◽  
Anthony Jameson ◽  
Ralf Rummer ◽  
Frank Wittig⋆

Author(s):  
Monique Janneck ◽  
Makbule Balin

In this study the authors investigated whether the experience of stressors would influence the performance of users in usability tests as well as their subjective rating of the usability of an interactive system. To that end, an experimental study was conducted comparing a usability test that was performed in the lab under quiet, relaxed conditions with a test situation where several stressors (time pressure, noise, social pressure) were applied. Results show that participants in stress conditions performed worse regarding the completion and correctness of the tasks. The stress and negative feelings the participants experienced also influenced their view of the tested software. Participants in stress conditions rated the usability of the software and their user experience more negative. Implications for the practice of usability testing are discussed.


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