**Script**

*CPSC 4120/6120 Eye Tracking Methodology*

**Experimenter:**

> **“**Thank you for agreeing to participate in this study. We will be asking you to view the computer monitor while your eyes are tracked.

“Do you have any questions?” *Experimenter answers any questions that the participant has.*

“Let’s begin. Please authorize your participation by reading this informational letter and then tell us a little about yourself by answering a few short questions.” *Experimenter hands **information letter** to participant. Then, experimenter asks the participant’s age, occupation and gender and records the information via the pre-experimental questionnaire.*

> “We will now position the eye tracker and perform a series of calibration steps. The calibration procedure should take about 5 minutes. Do you have any questions?” *Experimenter answers any questions that the participant has.*
>
> “Please be seated in front of the computer screen and the eye tracker. We will now perform a series of steps to adjust the tracker to your eyes. First, we will need to adjust the eye tracker position so that it is centered on your pupils.” *Experimenter adjusts eye tracker position.*
>
> “Now, please look straight ahead at the calibration utility on the computer screen, and maintain your position. I will be asking you to look at five/nine points on the screen. Please follow the points as they move, moving only your eyes.” *Experimenter initiates calibration. If the calibration result is unsatisfactory, the above procedure is repeated.*

“Thank you, we will now begin the experiment. Please watch the monitor.” *Experimenter clarifies any questions and initiates the experiment slideshow. Experimenter waits for participant to finish.*

> “This concludes the experiment. Thank you for your participation. Please feel free to contact us if you have any additional questions.”