Participants’ eye movements were recorded with a sampling rate of
250Hz. The experiment was designed and conducted with the SMI
software package Experiment Suite, using the velocity-based saccade
detection algorithm. The minimum duration of a fixation was 80ms.
The analyses used SMI BeGaze and SPSS v. 24. Eighteen participants
whose tracking ratio was below 80% were excluded from the eye
tracking analyses (but not from comprehension or cognitive load
assessments).