Can you do 3D puzzles...without using your hands? Our visual-spatial intelligence test assesses your ability to mentally manipulate 3D objects, a skill that has practical significance in everyday life ...

Recently, a research team from Peking University and Tsinghua University released their latest research results on arXiv - ...

After finishing this test you will receive a FREE snapshot report with a summary evaluation and graph. You will then have the option to purchase the full results for $6.95 This test is intended for ...

Perimetry (visual field testing) quantifies a patient’s retinal sensitivity to light and clarifies a deviation from normal ...