Scoring formula

[Atwood, Mark]

I have to agree with Derek on this one, 100%.

The conventional thought on "throwing out Highs and lows" is that you'll
get rid of the spurious ZERO from some Snap-roll nazi  along with the
gift "10" that the pilot's buddy awarded him.   That could be true.

But what really happens...the down side... Is that the toughest judge on
the panel...get's EVERY SCORE THROWN OUT...   He might as well pack up
and go home.   Same is true for the "easy" judge.  Forget about the fact
that they're consistent...  Tossing Highs and Low's doesn't really care.
In fact...the more consistently "tough" they are...the more likely that
they wasted their time.

TBL on the other hand looks at judges across the entire pool of flyers..
If a judge is consistently tough...fine.  But if he's tough on 8
pilots...and easy on 2...it's going to catch it.  Same goes for the easy
judge that's suddenly tough.  



-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On Behalf Of Derek Koopowitz
Sent: Friday, July 29, 2005 10:30 PM
To: discussion at nsrca.org
Subject: RE: Scoring formula

There is a big difference between TBLP and TBL.  TBL does not change
individual maneuver scores at all - it may change the overall round
score
for a judge based on how that judge has scored other pilots and relative
to
that judges' scores compared to the other judges.

I have given explanations of what TBL is several times - certain people
are
set in their ways and will not open up their minds to understanding
statistical methods.  I can equate TBL vs high-low throw out to people's
understanding of the impact on turnaround in pattern.

The problem with high-low discard is that you are eliminating the work
of
40% of your judges scores if 5 judges are used.  Is that fair to the
judges
and pilots?  TBL changes that by keeping about 90% of all judges scores.



-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
On
Behalf Of Grow Pattern
Sent: Friday, July 29, 2005 6:13 PM
To: discussion at nsrca.org
Subject: Re: Scoring formula

Check this out I was researching TBL formulae and I ran across this. The
parallelisms of the full-size aerobatic world to our world are pretty
scary.

_ Eric
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