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Topic: "z" correlation coefficient (?)
Replies: 6   Last Post: Sep 24, 2012 7:05 AM

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Vlad

Posts: 16
Registered: 7/23/12
"z" correlation coefficient (?)
Posted: Sep 22, 2012 3:28 PM
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Please help to interpret the correlation coefficient specified in this article http://hrcak.srce.hr/file/22665 .
They suggest they used Kendall Tau nonparametric correlation, but I can't figure out why it's noted as "z", not "?" ...

"In the group of nonsurvivors, a significant
correlation was found between ICP and GCS (z=-2.351),
and CPP and GCS (z=3.231), while no correlation was
observed between MAP and GCS (z=1.287). "

Best Regards,
Vlad.



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