Before You Begin

This study investigates mental rotation and spatial reasoning: the ability to mentally manipulate and rotate objects in space.

You will complete a short demographic questionnaire followed by a series of 3D visual reasoning tasks where you identify rotated versions of objects.

The study is conducted for research purposes in cognitive science and psychometric measurement. Participation is voluntary, and all responses will be analyzed anonymously.

No personal identifiers, such as names, phone numbers, or addresses, are collected. Limited technical information, including device type, browser, screen size, and response time, may be recorded only to evaluate testing conditions and improve the assessment.

For the best experience:
- use a computer or tablet if possible,
- complete the test without interruptions,
- stay in a comfortable environment.

Estimated duration: 10-15 minutes.

By continuing, you confirm that:
- you understand the purpose of this study,
- you voluntarily agree to participate,
- you consent to the anonymous use of your responses for research.