Self-assessment can provide insight into students' true comprehension and can help to identify gaps in students' knowledge. Encouraging students to examine their own learning and levels of understanding can also be an important 'wake-up call', identifying areas that require improvement.
Sit-and-reach and other similar tests that require a person to flex the hip to touch the toes are the most common field tests of flexibility. Such tests are designed to assess low-back and upper hamstring (complex of three posterior thigh muscles) flexibility
