Kuder-Richardson #21 Formula for estimate test reliability
A caveat -
There are tens of thousands of workbooks out there that can be copied. A
significant fraction of them, including ones posted by academics, have
errors or have poor boundary event error checking.
Validating someone else's worksheet for a simple calculation like this
can often be *more* difficult than building from scratch...
In article . com,
Bernd P wrote:
Some things are easier copied than re-invented.
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