naa a22 4500 510776515 CHVBK 20180411083232.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.3758/s13428-012-0247-4 doi (NATIONALLICENCE)springer-10.3758/s13428-012-0247-4 The influence of calibration method and eye physiology on eyetracking data quality [Elektronische Daten] [Marcus Nyström, Richard Andersson, Kenneth Holmqvist, Joost van de Weijer] Recording eye movement data with high quality is often a prerequisite for producing valid and replicable results and for drawing well-founded conclusions about the oculomotor system. Today, many aspects of data quality are often informally discussed among researchers but are very seldom measured, quantified, and reported. Here we systematically investigated how the calibration method, aspects of participants' eye physiologies, the influences of recording time and gaze direction, and the experience of operators affect the quality of data recorded with a common tower-mounted, video-based eyetracker. We quantified accuracy, precision, and the amount of valid data, and found an increase in data quality when the participant indicated that he or she was looking at a calibration target, as compared to leaving this decision to the operator or the eyetracker software. Moreover, our results provide statistical evidence of how factors such as glasses, contact lenses, eye color, eyelashes, and mascara influence data quality. This method and the results provide eye movement researchers with an understanding of what is required to record high-quality data, as well as providing manufacturers with the knowledge to build better eyetrackers. Psychonomic Society, Inc., 2012 Eyetracking nationallicence Data quality nationallicence Calibration nationallicence Eye physiology nationallicence Nyström Marcus Lund University, Lund, Sweden aut Andersson Richard Lund University, Lund, Sweden aut Holmqvist Kenneth Lund University, Lund, Sweden aut van de Weijer Joost Lund University, Lund, Sweden aut Behavior Research Methods Springer-Verlag 45/1(2013-03-01), 272-288 45:1<272 2013 45 13428 https://doi.org/10.3758/s13428-012-0247-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3758/s13428-012-0247-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nyström Marcus Lund University, Lund, Sweden aut NATIONALLICENCE 700 1- Andersson Richard Lund University, Lund, Sweden aut NATIONALLICENCE 700 1- Holmqvist Kenneth Lund University, Lund, Sweden aut NATIONALLICENCE 700 1- van de Weijer Joost Lund University, Lund, Sweden aut NATIONALLICENCE 773 0- Behavior Research Methods Springer-Verlag 45/1(2013-03-01), 272-288 45:1<272 2013 45 13428 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer