This function creates an eyetrackingR dataset (i.e., already run through make_eyetrackingr_data). This can be helpful for examining the false-alarm and sensitivity of analysis-techniques via simulations.
num_items_per_condition: Number of trials per-subject per-condition.
trial_length: How long is the trial (in ms)?
pref: Their preference between the two AOIs in the "high" condition, where 1 is 100
preference). In the "low" condition, their preference between the two AOIs is equal, so default is no effect of condition.
pref_window: Vector of length two, specifying start and end of time-window in which participants expressed the preference specified in pref. Default is the entire trial
noisy_window: Vector of length two, specifying start and end of time-window in which there was substantial trackloss during the trial.