Experiment Instructions

This study is about understanding how people perceive facial expressions of emotion of others based on photos.

Specifically, you will be asked how happy different people look like they are feeling based on provided photos.

Happy: feeling delighted, enjoyment, or amusement

There are no right or wrong answers, so please provide your most honest response.

Experiment Instructions (continued)

In each trial, you will first see a fixation cross (see example below). Please fixate your gaze at the cross.

Then, you will see the image, the question, and the rating scale (see example below).

Experiment Instructions (continued)

On top of each image, there will be a black arrow. This arrow indicates which person in the image you should rate.

Above the image, there will be question indicating what you are rating. Please enter your answer by pressing a number key 1, 2, 3, 4, 5, 6, or 7 on the top row of your computer keyboard. Clicking the numbers on the screen will NOT work.

Experiment Instructions (continued)

Your response time for answering the question will be recorded. You will receive an alert message if your response time is unusually short or long.

Experiment Instructions (continued)

Please note that we will check your attention during the experiment. Poor performance in these attention checks may result in rejection of your submission.

In the attention checks, you will be asked to identify which target person you previously rated (see example below).

There is no time limit for attention checks. Please take your time and think carefully before you respond.

Experiment Instructions (continued)

In each attention check, you will be presented with two identical images with different target persons.

To indicate the target person you previously rated, press the number key "1" for the left image or "7" for the right image using your keyboard. Clicking the numbers on the screen will NOT work.

- Again, if you rated the target person in the left image, press 1.
- If you rated the target person in the right image, press 7.

Experiment Instructions (continued)

You will be given the option to take a short break after completing a certain number of trials.

After completing all trials, you will fill out a survey about your demographics and understanding about this experiment.

You are about to start the experiment now. Please expand your web browser window to full screen.

 

 

You have completed this study. Thank you!

Your completion code is 7DF24D515F.