Variance component analysis determined that 87.7% of the variance in grades was attributable to the test item rather than to grader or session.
That’s an impressive degree of objectivity that almost certainly surpasses the level achievable with BCVA (where even a slight forward movement of the body or head can materially affect the measurement by shortening the distance between the eye and the reading chart).
“The efficient-market hypothesis may be the foremost piece of B.S. ever promulgated in any area of human knowledge!”