scholarly journals Does eye-tracking have an effect on economic behavior?

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0254867
Author(s):  
Jennifer Kee ◽  
Melinda Knuth ◽  
Joanna N. Lahey ◽  
Marco A. Palma
Keyword(s):  
Eye Tracking ◽  
Data Quality ◽  
Economic Behavior ◽  
Social Desirability Bias ◽  
Risk Averse ◽  
Tracking Data ◽  
Control Groups ◽  
Subject Design ◽  
Tracking Device ◽  
And Control

Eye-tracking is becoming an increasingly popular tool for understanding the underlying behavior driving human decisions. However, an important unanswered methodological question is whether the use of an eye-tracking device itself induces changes in participants’ behavior. We study this question using eight popular games in experimental economics chosen for their varying levels of theorized susceptibility to social desirability bias. We implement a simple between-subject design where participants are randomly assigned to either a control or an eye-tracking treatment. In seven of the eight games, eye-tracking did not produce different outcomes. In the Holt and Laury risk assessment (HL), subjects with multiple calibration attempts demonstrated more risk averse behavior in eye-tracking conditions. However, this effect only appeared during the first five (of ten) rounds. Because calibration difficulty is correlated with eye-tracking data quality, the standard practice of removing participants with low eye-tracking data quality resulted in no difference between the treatment and control groups in HL. Our results suggest that experiments may incorporate eye-tracking equipment without inducing changes in the economic behavior of participants, particularly after observations with low quality eye-tracking data are removed.

scholarly journals Are post-error adjustments influenced by beliefs in free will? A failure to replicate Rigoni, Wilquin, Brass and Burle, 2013

2020 ◽  
Vol 7 (11) ◽  
pp. 200664
Author(s):  
Charlotte Eben ◽  
Zhang Chen ◽  
Emiel Cracco ◽  
Marcel Brass ◽  
Joël Billieux ◽  
...  
Keyword(s):  
Free Will ◽  
Statistical Power ◽  
Original Study ◽  
Control Group ◽  
Control Groups ◽  
Correct Trial ◽  
Manipulation Check ◽  
Subject Design ◽  
And Control ◽  
Larger Sample

In this pre-registered study, we tried to replicate the study by Rigoni et al. 2013 Cognition 127 , 264–269. In the original study, the authors manipulated the participants’ belief in free will in a between-subject design and subsequently measured post-error slowing (i.e. slower responses after an incorrect trial compared with a correct trial) as a marker of cognitive control. They found less post-error slowing in the group with reduced belief in free will (anti-free will group) compared with a control group in which belief in free will was not manipulated. In the present study, we used the same task procedure and the same free will manipulation (Crick text) in an attempt to replicate these findings. However, we used an online procedure and a larger sample size in order to address concerns about statistical power. Similar to the original study, we also used a questionnaire to measure beliefs in free will as an independent manipulation check. We found a difference in the scores on the questionnaire, thus a reduced belief in free will, after reading the Crick text. However, we did not find any difference in post-error slowing between the anti-free will and control groups. Our findings are in line with several other recent findings suggesting that the Crick text manipulation affects the participants’ self-reported belief in free will but not their behaviour. The present study can be considered a high-powered failed replication attempt.

scholarly journals Are Photographs Worth More Than a Thousand Words? Examining the Effects of Photographic–Textual and Textual-Only Frames on Public Attitude Toward Nuclear Energy and Nanotechnology

2018 ◽  
Vol 95 (4) ◽  
pp. 948-970 ◽  
Author(s):  
Edmund W. J. Lee ◽  
Shirley S. Ho
Keyword(s):  
Risk Perception ◽  
Visual Attention ◽  
Eye Tracking ◽  
Nuclear Energy ◽  
Public Support ◽  
Public Attitude ◽  
Theory And Practice ◽  
Tracking Data ◽  
Subject Design ◽  
The Impact

This study examines the impact of photographic–textual and risk–benefit frames on the level of visual attention, risk perception, and public support for nuclear energy and nanotechnology in Singapore. Using a 2 (photographic–textual vs. textual-only frames) × 2 (risk vs. benefit frames) × 2 (nuclear energy vs. nanotechnology) between-subject design with eye-tracking data, the results showed that photographic–textual frames elicited more attention and did have partial amplification effect. However, this was observable only in the context of nuclear energy, where public support was lowest when participants were exposed to risk frames accompanied by photographs. Implications for theory and practice were discussed.

scholarly journals Wearable Activity Tracking Device Use in an Adolescent Weight Management Clinic: A Randomized Controlled Pilot Trial

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Kanika Bowen-Jallow ◽  
Omar Nunez-Lopez ◽  
Alex Wright ◽  
Erika Fuchs ◽  
Mollie Ahn ◽  
...  
Keyword(s):  
Weight Loss ◽  
Weight Management ◽  
Pilot Trial ◽  
Attrition Rate ◽  
Control Group ◽  
Control Groups ◽  
Activity Tracking ◽  
Randomized Controlled ◽  
Tracking Device ◽  
And Control

Background. The use of physical activity tracker devices has increased within the general population. However, there is limited medical literature studying the efficacy of such devices in adolescents with obesity. In this study, we explored the feasibility of using wearable activity tracking devices as an adjunct intervention on adolescents with obesity. Methods. Randomized controlled pilot trial evaluated the feasibility (attrition ≤50%) of an activity tracking intervention (ATI) and its effects on weight loss in adolescents with obesity enrolled in an adolescent weight management clinic (AWMC). Outcomes included feasibility (attrition rate) and absolute change in BMI. Differences between groups at 6, 12, and 18 weeks were examined. Results. Forty-eight participants were enrolled in the study. Eighteen subjects were randomly assigned to the ATI group and 30 to control. The average age was 14.5 years. Overall, the majority of participants were Hispanic (56%). Sexes were equally distributed. The average baseline BMI was 37.5 kg/m2. At the study conclusion, the overall attrition rate was 52.1%, 44.4% in the ATI group versus 56.6% in the control group, with a differential attrition of 12.2%. The ATI and control groups each showed an absolute decrease in BMI of −0.25 and −2.77, respectively, with no significant differences between the groups. Conclusion. The attrition rate in our study was >50%. Participation in the AWMC by the ATI and control groups resulted in maintenance of BMI and body weight for the study duration. However, the use of an activity tracking device was not associated with greater weight loss. This trial is registered with NCT03004378.

Master’s students’ post-editing perception and strategies

FORUM ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 26-44
Author(s):  
Loïc de Faria Pires
Keyword(s):  
Eye Tracking ◽  
European Commission ◽  
Tracking Data ◽  
Master's Students ◽  
Process Study ◽  
Directorate General ◽  
Tracking Device ◽  
The University ◽  
Institutional Texts ◽  
Editing Process

Abstract The present article aims at presenting the results of an exploratory post-editing process study carried out in a Belgian university, the University of Mons. For this experiment, 64 final-year translation students with no post-editing experience post-edited from English into French parts of five different institutional texts from the Directorate-General for Translation (DGT) of the European Commission. They were additionally asked to fill in a prospective questionnaire and a retrospective one, related to their post-editing perception and strategies. Four students took part in the experiment on a separate computer equipped with an eye-tracking device, so that eye-tracking data could be collected and compared with these students’ questionnaires. We found that results related to eye-tracking data correlate well with previous research, and that students’ perceptions of post-editing depend on each university’s particular context.

scholarly journals Designs and Algorithms to Map Eye Tracking Data with Dynamic Multielement Moving Objects

2016 ◽  
Vol 2016 ◽  
pp. 1-18 ◽  
Author(s):  
Ziho Kang ◽  
Saptarshi Mandal ◽  
Jerry Crutchfield ◽  
Angel Millan ◽  
Sarah N. McClung
Keyword(s):  
Eye Tracking ◽  
Traffic Control ◽  
Visual Angle ◽  
Human Performance ◽  
Moving Objects ◽  
Air Traffic ◽  
Tracking Data ◽  
Angle Error ◽  
Design Concepts ◽  
And Control

Design concepts and algorithms were developed to address the eye tracking analysis issues that arise when (1) participants interrogate dynamic multielement objects that can overlap on the display and (2) visual angle error of the eye trackers is incapable of providing exact eye fixation coordinates. These issues were addressed by (1) developing dynamic areas of interests (AOIs) in the form of either convex or rectangular shapes to represent the moving and shape-changing multielement objects, (2) introducing the concept of AOI gap tolerance (AGT) that controls the size of the AOIs to address the overlapping and visual angle error issues, and (3) finding a near optimal AGT value. The approach was tested in the context of air traffic control (ATC) operations where air traffic controller specialists (ATCSs) interrogated multiple moving aircraft on a radar display to detect and control the aircraft for the purpose of maintaining safe and expeditious air transportation. In addition, we show how eye tracking analysis results can differ based on how we define dynamic AOIs to determine eye fixations on moving objects. The results serve as a framework to more accurately analyze eye tracking data and to better support the analysis of human performance.

PROCESSING VARIABILITY IN INTENTIONAL AND INCIDENTAL WORD LEARNING

2019 ◽  
Vol 42 (2) ◽  
pp. 327-357 ◽  
Author(s):  
Bronson Hui
Keyword(s):  
Eye Tracking ◽  
Word Learning ◽  
Frequency Control ◽  
Native English Speakers ◽  
English Word ◽  
Word Knowledge ◽  
Tracking Data ◽  
Learning Experiment ◽  
And Control ◽  
Incidental Word Learning

AbstractI investigated the trajectory of processing variability, as measured by coefficient of variation (CV), using an intentional word learning experiment and reanalyzing published eye-tracking data of an incidental word learning study (Elgort et al., 2018). In the word learning experiment, native English speakers (N = 35) studied Swahili-English word pairs (k = 16) before performing 10 blocks of animacy judgment tasks. Results replicated the initial CV increase reported in Solovyeva and DeKeyser (2018) and, importantly, captured a roughly inverted U-shaped development in CV. In the reanalysis of eye-tracking data, I computed CVs based on reading times on the target and control words. Results did not reveal a similar inverted U-shaped development over time but suggested more stable processing of the high-frequency control words. Taken together, these results uncovered a fuller trajectory in CV development, differences in processing demands for different aspects of word knowledge, and the potential use of CV with eye-tracking research.

scholarly journals Teachers’ website design experiences and usability test: the case of weebly.com

2018 ◽  
Vol 10 (4) ◽  
pp. 37-51
Author(s):  
Duygu Mutlu Bayraktar ◽  
Servet Bayram
Keyword(s):  
Teacher Education ◽  
Eye Tracking ◽  
Website Design ◽  
Control Groups ◽  
Usability Test ◽  
And Control ◽  
Design Experience

This study was conducted in order to examine the process by which teachers designed a website. For this purpose, www.weebly.com, which is used as a website building tool, was selected and teachers were given tasks for web designing. Experiments were designed differently for experiment and control groups. Before performing the tasks, an introduction video was shown to the experiment group. Then, interview questions about the contribution of introduction videos and usability of website were asked. According to the results, the group that watched the introduction video completed the tasks in a shorter time than the group who did not watch the videos. At the same time, the group who watched introduction videos before using the site was able to complete more tasks than the group that did not watch the videos. These results show that the use of introduction videos as a navigation facilitator enhances the usability.Keywords: Website design experience, teacher education, usability, eye tracking.*

scholarly journals Exploring the Potential of Online Webcam-based Eye Tracking in Decision-Making Research and Influence Factors on Data Quality

2021 ◽  
Author(s):  
Tim Schneegans ◽  
Matthew D. Bachman ◽  
Scott A. Huettel ◽  
Hauke Heekeren
Keyword(s):  
Decision Making ◽  
Eye Tracking ◽  
Data Quality ◽  
Open Source ◽  
Influence Factors ◽  
Frame Rate ◽  
Quality Data ◽  
Tracking Data ◽  
Chin Rest ◽  
Negative Effect

Recent developments of open-source online eye-tracking algorithms suggests that they may be ready for use in online studies, thereby overcoming the limitations of in-lab eye-tracking studies. However, to date there have been limited tests of the efficacy of online eye-tracking for decision-making and cognitive psychology. In this online study, we explore the potential and the limitations of online eye-tracking tools for decision-making research using the webcam-based open-source library Webgazer (Papoutsaki et al., 2016). Our study had two aims. For our first aim we assessed different variables that might affect the quality of eye-tracking data. In our experiment (N = 210) we measured a within-subjects variable of adding a provisional chin rest and a between-subjects variable of corrected vs uncorrected vision. Contrary to our hypotheses, we found that the chin rest had a negative effect on data quality. In accordance with out hypotheses, we found lower quality data in participants who wore glasses. Other influence factors are discussed, such as the frame rate. For our second aim (N = 44) we attempted to replicate a decision-making paradigm where eye-tracking data was acquired using offline means (Amasino et al., 2019). We found some relations between choice behavior and eye-tracking measures, such as the last fixation and the distribution of gaze points at the moment right before the choice. However, several effects could not be reproduced, such as the overall distribution of gaze points or dynamic search strategies. Therefore, our hypotheses only find partial evidence. This study gives practical insights for the feasibility of online eye-tacking for decision making research as well as researchers from other disciplines.

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