Validity
The Back-Saver Sit & Reach test has been proven to provide extremely consistent scores according to The Cooper Institute, when done under standardized conditions. NASPE supports this test to be an accurate measure of hamstring flexibility and as a way to detect any asymmentry in hamstring flexibility.
Reliability
All of the boxes used in the test were the same size and followed the standards of the test (12 inches in height). Also, the ruler must be placed on top of the box with the 9 inch mark parallel to the face of the box against which the student's foot will rest. Students must warm up their hamstrings thoroughly, and then engage in an appropriate stretching routine before taking the test. Also, students must follow all directions to properly take the test.
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