[Babase] Re: Predation Coding Scheme

Susan Alberts alberts at duke.edu
Tue Mar 11 06:51:57 EDT 2008


Thanks karl, see below,

> On 03/10/2008 10:41:41 PM, Susan Alberts wrote:
>>> Regards data entry error.  Don't forget the "have two different
>>> people enter the data and then compare" method of error detection.
>
>> And, of course, we will have two people proofing, with a switch in  
>> roles to make sure that the enterer is not re-duplicating her  
>> original errors.
>
> The dual-entry/compare can _be_ the proofing.

Yes, when we do dual entry, that substitutes for proofing for us. But  
in the case of transcribing hand-written, prose notes into coded,  
digitizable format, i think that dual entry may be prohibitive and  
proofing much faster and less labor intensive.  We will continue to  
think about it and see how dual entry goes for a small part of it,,  
as I mentioned earlier. I like your idea of comparing that with  
proofing to see which is more time consuming. Lacey, let us know your  
thoughts.

Susan

>   It all depends on how
> through you want to be.  I don't have extensive experience, but
> the 2nd entry can, depending, be as quick an operation as the
> proofing.  Then you let the computer do the actual checking
> during the compare step.  The thing about having a human
> do the proofing is that seeing work done can pre-dispose
> the proofer to interpret the original data, or just the
> transcription, in an erroneous fashion.  Not necessarily
> in their own data entry work (if the proofer/enterers are swapping
> roles), but in the actual proofing itself.  The nice thing
> about dual-entry is that both data entry people start from
> a "clean slate" and have no pre-conceptions about what the
> data should look like.
>
> You might want to benchmark the various approaches (comparing time,
> error rates, with a control without proofing or double-entry,
> statistically validating the results, publishing a paper on
> "Data Entry Approaches to Recording Primate Predation Data",
> etc.  ;-)
>
> Karl <kop at meme.com>
> Free Software:  "You don't pay back, you pay forward."
>                  -- Robert A. Heinlein
>
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