``... usually, these cutoffs are established by measuring the test in
normal, healthy people (called «a reference group») and figuring
out where 95 %
of the results
fall; if your result
falls in between the cutoffs, your health care professional may call it «wnl,» «in the
normal range» or «within the reference
range.»
Because disability is not the absence
of ability, but rather a level
of ability which
falls below the
normal range, the characterization
of the protected class singled
out for special treatment will be more complex in a disability case.