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Re: Measure of Ego Tie Strength

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Fri, 8 Jun 2007 08:29:20 +0200

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 ***** To join INSNA, visit http://www.insna.org ***** <<<-------- Kenneth Chung-------->>> > Tie strength in my study is measured by: > - closeness (4 point scale from very close to distant) and > - frequency of contact (5 point scale ranging from daily to less often), > although data on other variables such as 'time known' and 'relationship > type' is also available. ... > 1. use the average strength of ties for an ego (ie. sum the values of each > tie from ego to alter and divide by count of ties). In this case, the > values > of each tie may be: > (i) the average of closeness and frequency values, or > (ii) the product of closeness and frequency values   Since your tie strength is measured on ordinal scale the   average and product are not good measures for the mean   value - the right measure is median. See for example   F.S. Roberts: Discrete Mathematical Models. pp. 491-497.   If your measurements can be seen as estimates of logarithms   of real values measured on rational scale then you   can use the average (arithmetic mean) - logarithm of geometric   mean (a good measure of mean for rational scale) turns into   average of logarithms.   Vlado -- Vladimir Batagelj, University of Ljubljana, Department of Mathematics   Jadranska 19, PO Box 2964, 1111 Ljubljana, Slovenia http://vlado.fmf.uni-lj.si _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.