Debbie,
What really matters is do you feel that the test gives you good
and/or useful information. I use PIPB as a quick added screen
when I have a patient with some questionable indications of retro
pathology.
With all of the high tech stuff now available now what is wrong with some
of the older test indicators? It's not gospel but every little bit helps
when you have someone that tires easily , or is just inattentive.
Stick to your guns
Bob Siegel M.S. CCC-A, BC-HIS