[visionlist] color vision test question

[Gene4 at aol.com]

In an employment testing situation, the physician has found an individual who 
scored the following on the Farnsworth D-15 test:

15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1

This order was exactly the reverse of what it should have been.  The subject 
placed the most different cap (#15) next to the reference cap and then ordered 
them.

Having never seen this occur, a second test was administered:

14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 15

In effect, the order is the same.  This also confused the physician and a 
third test was given:

15, 12, 11, 10, 5, 9, 7, 8, 6, 4, 3, 12, 13, 14

and a fourth test:

14, 2, 12, 5, 6, 8, 7, 9, 10, 4, 3, 13, 1, 15


Clearly, the person is very color confused.  But what can explain the first 
two tests?

Any feedback would be appreciated.

Gene Carmean
www.med-tox.com<BR><BR><BR>**************************************<BR> Check out free AOL at 
http://free.aol.com/thenewaol/index.adp.  Most comprehensive set of free safety 
and security tools, millions of free high-quality videos from across the web, 

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