Re: correlation coefficients

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#953

From: Ronan M Conroy
Date: Thu, 28 Jan 1993 13:19

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On Wed, 27 Jan 1993 16:34:00 EST <KIRISCI@PITTVMS> said:
>
>I have two questionnaries:one has items with 7-point scale and the other one
>has
>   items with 3-point scale. I wonder if anyone suggest me how to calculate
>correlation coefficients between individual items whose have different scales.
>What can be the best way? or do I need to make some transformations?
>I am looking forward to reading your comments.
>thank you.

Seems to me that this is a case where Kendall's tau should work better
than Spearman's rho, since one of the scales has few values.
But, apart from the old SPSS manual (V5?) has anyone a reference
on when tau works better than rho?


ronan

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Newsgroups: bit.listserv.stat-l
Date:         Thu, 28 Jan 1993 13:19:48 GMT
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From:         Ronan M Conroy <RCONROY@IRLEARN.UCD.IE>
Subject:      Re: correlation coefficients
In-Reply-To:  Message of Wed, 27 Jan 1993 16:34:00 EST from <KIRISCI@PITTVMS>
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