eye_movement_data.csv,,,
var name,label,units/values,notes
p_no,unique participant identifier,n/a,corresponds with identifier in demographic_data.csv
trial,parent trial for this observation,n/a,"This variable is consecutively numbered and only has meaning within a particpant. I.e. '1' indicates the first trial a participant engaged in, '5' the fifth, etc. As the stimulus and task were randomly selected for each trial, this variable does not have a relationship with the stimulus on screen or the type of task engaged in."
task,type of task for current trial,"1 = word search task, 2 = subjective interest task",n/a
fix_dur,duration of fixation,ms,n/a
sacc_amp,amplitude of saccade,visual angle in degrees,n/a
fix_x,fixation x-coordinate,screen pixels,"Origin is top-left of screen, screen resolution was 1024 x 768, distance to screen (for calculation of visual angle) was 57cm, and screen size 21 inch."
fix_y,fixation y-coordinate,screen pixels,As per above
scc_x_s,saccade start x-coordinate,screen pixels,As per above
scc_y_s,saccade start y-coordinate,screen pixels,As per above
scc_x_e,saccade end x-coordinate,screen pixels,As per above
scc_y_e,saccade end y-coordinate,screen pixels,As per above
scc_ang,direction of saccade,visual angle in degrees,n/a
block,parent experiment block for this observation,n/a,n/a
stim,stimulus displayed at current trial,n/a,Each number identifies a unique set of 10 news headlines
tr_time,total time of current trial,ms,n/a
ev_no,fixation-saccade sequence counter,n/a,Counter resets with each participant
tr_ev_no,fixation-saccade sequence counter,n/a,Counter resets with each trial
ev_dur,duration of fixation-saccade sequence,ms,n/a
fix_timestamp,onset timestamp of fixation,ms,n/a
scc_timestamp,onset timestamp of saccade,ms,n/a
scc_velo,velocity of saccade,degree / sec,n/a
scc_dir,discrete direction of saccade,"1 = forward, 2 = up, 3 = backward, 4 = down, 5 = end of trial",Saccade direction calculated relative to news headline on saccade start (see method section of paper)
revisit,indicator if fixation is on previously fixated word,"0 = FALSE, 1 = TRUE",n/a
,,,
demographic_data.csv,,,
var name,label,units/values,notes
pno,unique participant identifier,n/a,corresponds with identifier in eye_movement_data.csv
age,age of participant,years,n/a
sex,indicator whether participant was female or male,"0 = female, 1 = male",n/a