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Bernd P Bernd P is offline
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Default Kuder-Richardson #21 Formula for estimate test reliability

Hello,

If you google for "Kuder-Richardson 21 Formula excel" then you will
find
http://www.gifted.uconn.edu/siegle/r...eliability.htm
which links to a [IMHO] nice sample spreadsheet
http://www.gifted.uconn.edu/siegle/r...alculator2.xls

Some things are easier copied than re-invented.

Regards,
Bernd