Hi, thank you for showing interest in this survey.

This survey consists of 10 questions which should only take between 5 - 10 minutes, for each question you will be shown 2 images and asked which you think is correct.

Each question you will see 2 images of a geometric shape, on the shape will be a marker (a gray dot) there will also be a corresponding marker in the cast shadow.

The location of the marker in the shadow will be different in both images, your task is to correctly choose which of the two images contains the marker in the cast shadow that correctly matches the location of the marker on the shape itself.

Example Image: