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Topic: [ap-stat] AP Stats scoring simulator spreadsheet
Replies: 1   Last Post: Mar 31, 2011 9:02 PM

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dennis roberts

Posts: 8,600
Registered: 12/6/04
Re: [ap-stat] AP Stats scoring simulator spreadsheet
Posted: Mar 31, 2011 9:02 PM
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At 10:36 AM 3/31/2011, Bailey, Randy C wrote:



>The spreadsheet now gives two AP scores -- one using the original
>"subtract 1/4 pt for wrong answers" scheme, and once using the new
>scoring conversion templates.



I just want to remind folks that a simple conversion of a score ...
assuming the correction was added back ... makes an assumption that
IF the student had been doing the test under a non correction for
guessing direction, they would have responded exactly the same way.
This assumes that the strategy one would use given advice about how
to respond IF a formula were used AND if it were not used ... are
the same. If students really take the correction for guessing
directions to heart, then the strategies under both conditions should
not be the same. How much difference there might really be is a
matter of empirical investigation.

Some work would suggest that a mere adding back of the correction is
perhaps not enough ... if you really believe that following a
strategy when a correction is applied ... hurts those with partial
knowledge on items.



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