A quick question on Spearman's rank correlation coefficient

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Just some guy
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Hi,

I was just wondering about spearman's rank correlation coefficient hypothesis tests - for these to be valid does the data in the sample have to be drawn from a bivariate normal distribution or does that only apply to the product moment correlation coefficient?

Cheers,
Just some guy
 
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As far as I understand, the data can be anything.

http://en.wikipedia.org/wiki/Spearman's_rank_correlation_coefficient (look under "Determining significance").