[gradebook2-dev] Question about course grade calculation (# of decimal places)

[Jim Mezzanotte]

Thanks for the info Thomas--much appreciated.

Tool version may be an issue here, since the school is on 1.4.1.

One question--I didn't realize the tool employed such precision when
calculating grades. But when you say "use a scale up to 50 decimal
places," are you referring to the cutoffs for grade ranges in grade
scales, or just the precision used for the display of a calculated
grade? (before the round, of course)

Best,
Jim Mezzanotte
rSmart

On Wed, Apr 4, 2012 at 6:42 PM, Thomas Amsler <tpamsler at ucdavis.edu> wrote:
> Please see inline comments below:
>
>
> On Wed, Apr 4, 2012 at 11:48 AM, Jim Mezzanotte <jmezzanotte at rsmart.com> wrote:
>> Hi all,
>>
>> I'm trying to determine how many demical places Gradebook2 uses when
>> calculating course grades.
>>
>> When you're entering scores (in points) for an item, you can enter up
>> to five decimal places, yet the tool only displays to two decimal
>> places.
>
> That's correct. Please not that all gradebook2 calculations use a
> scale up to 50 decimal places. The final numeric grade is then rounded
> to two decimal places.
>
>>
>> One of our clients is using a custom final grade export integration
>> with Banner. They noticed that, while course grades display to only
>> two decimal places both in Banner and in the tool, the export files
>> display to three decimal places.
>
> What version of gradebook2 are they using? The latest version should
> round the calculated grade to two decimal places in the export file.
>
>>
>> I'm assuming the export is exposing what Gradebook2 does behind the
>> scenes--that is, the tool calculates course grades to three decimal
>> places, and then it rounds to display only two decimal places. Thanks
>> in advance if anyone can confirm, this is how the tool calculates
>> course grades?
>
> As mentioned above, it uses 50 decimal places to do all calculations
> and then rounds it to two decimal places. I think in older gradebook2
> versions, the displayed "Calculated Grade" wasn't rounded for display
> purpose.
>
> -- Thomas
>
>>
>> Best,
>> Jim Mezzanotte
>> rSmart
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