Our system has control questions and detects inattentive or malicious users. Please, read the instructions carefully, try to understand the definitions, and answer the best you can.

If you do not pay attention or answer randomly, your HIT will be rejected.

How does the test work?

We will show you an image of an object made of a certain material, and we will provide you with a list of properties that may describe its visual appearance (e.g., glossiness, metallicness...). For each property you will have to rate how much this property applies to the material from 1 (not a all) to 7 (a lot).

Before starting with the real test we will explain the attributes you will use and show you some examples.


Google Chrome is the preferred browser. Please note that JavaScript should be enabled for the survey to work correctly.

You must complete the survey until the end to get your code for submitting to MTurks. Please do not refresh the browser nor click back while in the middle of the survey! If you do so, you may have to start over.

Consent for participation on the study

  I agree to participate in this research study. I understand the purpose and nature of this study and I am participating voluntarily. I understand that I can withdraw from the study at any time, without any consequences. I grant permission for the data generated from this questionnaire to be used in the researcher's publications on this topic. The generated data will be stored anonymously under a randomly generated unique ID. Any information that is obtained in connection with this study and that may be identified with you will remain confidential and will be disclosed only with your permission.