Mark James Boyd wrote:
The FAA collected statistics for pass rates of pilots for
various certificates. They compared the pass rates of
pilots flying with an FAA ASI for a practical test vs. the
pass rates for Designated Pilot Examiners.

The pass rates for both glider initial and add-on ratings
for DPEs was around 90%.

Over the same period, the FAA ASI pass rate for all types of
glider tests was 100%.

What is going on here? Well, the sample sizes were significant
(at least 30+) so that can't be it. One major difference is that
if a DPE has a string of perhaps 20-30 passes, they get
"looked at" a little bit harder.

Mr. Boyd since your quoting numbers and statistics that many of us have
never heard of before. Could you provide us with the name of the FAA
publication or the url for the site where the FAA publishes this
information? Interestingly one of our regional directors had requested
this type of information from the local FSDO just last year and was
told that the data was not available.

M Eiler