Re: Interesting data

[Dennis Roberts]

Well, I think there are at least 3 common definitions of standardize: A) to 
judge some performance against an external standard ... like, developing a 
set of norms tables ... then, one can compare his/her performance against 
that standard, B) to establish a set of testing procedures (like the SAT 
test) based on a set of "standard" conditions, and C) ... the one involved 
here ... to rescale data based on the mean and standard deviation ... the z 
score standard scale being the base standard scale

The example was simply given to show how sets of data ... with 1 varying 
more or less extreme score with 4 others being the same and tied ... could 
produce the same z score for the top value when, on the surface, it looks 
like the position of the top score changed but yet, the z score did not

I certainly agree with Don, the data are not remarkable ... but nonetheless 
... make for interesting discussion

At 02:27 AM 8/3/03 -0400, Donald Burrill wrote:
The result is described below as "remarkable".  I see nothing remarkable
about it, except possibly for the idiot of a teacher.
Interesting semantic question, though:  Are those properly called "z"
scores?


yes they are



Dennis Roberts
Email: [EMAIL PROTECTED]
Web: http://roberts.ed.psu.edu/users/droberts/drober~1.htm
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