Evaluating three approaches to binary event-level agreement scoring. A reply to Friedman (2020).
Published in Behavior research methods
Does agreement mean accuracy? Evaluating glance annotation in naturalistic driving data.
Published in Behavior research methods
Naturalistic driving studies often make use of cameras to monitor driver behavior. To analyze the resulting video images, human annotation is often adopted. These annotations then serve as the 'gold standard' to train and evaluate automated computer vision algorithms, even though it is uncertain how accurate human annotation is. In this study, we p...
What is semantic diversity and why does it facilitate visual word recognition?
Published in Behavior research methods
Previous research has speculated that semantic diversity and lexical ambiguity may be closely related constructs. Our research sought to test this claim in respect of the semantic diversity measure proposed by Hoffman et al. (2013). To this end, we replicated the procedure described by Hoffman et al., Behavior Research Methods, 45(3), 718-730 (2013...
REMoDNaV: robust eye-movement classification for dynamic stimulation.
Published in Behavior research methods
Tracking of eye movements is an established measurement for many types of experimental paradigms. More complex and more prolonged visual stimuli have made algorithmic approaches to eye-movement event classification the most pragmatic option. A recent analysis revealed that many current algorithms are lackluster when it comes to data from viewing dy...
Is apparent fixational drift in eye-tracking data due to filters or eyeball rotation?
Published in Behavior research methods
Eye trackers are sometimes used to study the miniature eye movements such as drift that occur while observers fixate a static location on a screen. Specifically, analysis of such eye-tracking data can be performed by examining the temporal spectrum composition of the recorded gaze position signal, allowing to assess its color. However, not only rot...
Smartphone sensor accuracy varies from device to device in mobile research: The case of spatial orientation.
Published in Behavior research methods
Smartphone usage is increasing around the globe-in daily life and as a research device in behavioral science. Smartphones offer the possibility to gather longitudinal data at little cost to researchers and participants. They provide the option to verify self-report data with data from sensors built into most smartphones. How accurate this sensor da...
Sample-size determination for the Bayesian t test and Welch's test using the approximate adjusted fractional Bayes facto...
Published in Behavior research methods
When two independent means μ1 and μ2 are compared, H0 : μ1 = μ2, H1 : μ1≠μ2, and H2 : μ1 > μ2 are the hypotheses of interest. This paper introduces the R package SSDbain, which can be used to determine the sample size needed to evaluate these hypotheses using the approximate adjusted fractional Bayes factor (AAFBF) implemented in the R package bain...
The Tobii Pro Spectrum: A useful tool for studying microsaccades?
Published in Behavior research methods
Due to its reported high sampling frequency and precision, the Tobii Pro Spectrum is of potential interest to researchers who want to study small eye movements during fixation. We test how suitable the Tobii Pro Spectrum is for research on microsaccades by computing data-quality measures and common properties of microsaccades and comparing these to...
Magic Curiosity Arousing Tricks (MagicCATs): A novel stimulus collection to induce epistemic emotions.
...Published in Behavior research methods
There has been considerable interest in empirical research on epistemic emotions, i.e., emotions related to knowledge-generating qualities of cognitive tasks and activities such as curiosity, interest, and surprise. One big challenge when studying epistemic emotions is systematically inducting these emotions in restricted experimental settings. The...
The saccade main sequence revised: A fast and repeatable tool for oculomotor analysis.
Published in Behavior research methods
Saccades are rapid ballistic eye movements that humans make to direct the fovea to an object of interest. Their kinematics is well defined, showing regular relationships between amplitude, duration, and velocity: the saccadic 'main sequence'. Deviations of eye movements from the main sequence can be used as markers of specific neurological disorder...
