At 03:28 PM 1/22/01 -0500, Rich Ulrich wrote:


>"If Matt scored 121 on an IQ test and Damien scored 123 on the same
>test, what is the maximum difference in their IQs?"


the comparable item to the real one shown before would be: "if matt was 
measured ACCURATELY (rounded to the nearest single IQ point) to have an IQ 
of 121 and damien was also measured ACCURATELY (to the nearest single IQ 
point) to have an IQ of 123 ... "

the operative terms here are "measured accurately" ...and the "units"

and of course, the UNITS that are being implied ... for the original data 
... it was to the nearest pound ... and, the IQ item would also have to put 
the "accuracy to the nearest ... " into some score value context

your rewording does change things and ... would imply perhaps not very 
accurate measurement but, the original question DID have that word ... 
"accurate" ...

this word cannot be discounted ...

as i said before ... given the stem and the choice C of 1 foot ... i think 
any intelligent examinee could argue logically that this is the correct 
answer ... or, if the test builder wanted to claim D or 2 feet is the 
correct answer ... that C would have to be given equal correct weight ...

there just is no good way to argue against the original choice C ... IN THE 
CONTEXT OF THE STEM OF THE QUESTION



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