Data Schema

We developed a common, tidy format for the eye-tracking data in Peekbank to ease the process of conducting cross-dataset analyses.

The schema consists of a set of tables, each tracking different types of information about a given dataset (see below for a list of tables). Each table can be accessed through functions in the peekbankr R package. Table columns are linked through connecting IDs (indicated by links in the schema figure below).

• datasets: Information about the eyetracking dataset, including citation info
• subjects: Data on individual participants
• administrations: Properties of a specific session in which an individual subject participated
• aoi_timepoints: Participant looking to the areas of interest (target vs. distractor) sampled at regular time intervals
• xy_timepoints: Gaze coordinates of participants’ looking to the screen sampled at regular time intervals (if available)
• trial_types: Properties of each trial, including the stimuli, target location, and carrier phrase.
• stimuli: Stimuli in the form of word-image pairs
• trials: A record of the specific order in which a subject completed trials
• aoi_region_sets: Positional information about areas of interest (if available)