A "Test Card" is a visual tool used in various fields, including education and psychology, to assess knowledge or skills. It typically contains questions or tasks that individuals must complete, allowing evaluators to measure performance and understanding. Test cards can be used in standardized testing or informal assessments. In television broadcasting, a "Test Card" refers to a pattern or image displayed on screen to help technicians calibrate equipment. These cards often feature geometric shapes and colors, ensuring that the broadcast quality meets industry standards. They are essential for maintaining clarity and consistency in visual media.