Most modern eye trackers are video-based. Images of the eye captured at regular intervals, the sampling rate, are processed to calculate instantaneous gaze position. This discrete data stream must then be converted back to the informative, continuous eye movements for analysis. This digital-to-analog conversion is accomplished by passing the raw gaze samples through an event detection algorithm called the fixation filter.
We often reconstruct memories and experiences based on bias and social norms. These misinterpretations from respondents can have a serious impact on our ability as researchers to extract accurate and objective data, especially in qualitative settings. It made for a great topic of discussion during our recent roadshow in Melbourne and Sydney.
There is a new kid on the block in the world of qualitative data-analysis tools – Reframer by Optimal Workshop. Time to give its Beta version a thorough review.