Merit estimations from paired comparison tests (Aaron Hastings )

Subject: Merit estimations from paired comparison tests
From:    Aaron Hastings  <hastinga(at)ECN.PURDUE.EDU>
Date:    Sun, 11 Nov 2001 13:15:20 -0500

I am trying to estimate merits from the data collected during a paired compairison test. One suggested method involves minimizing the error of Log[ p(i)] estimates using a Least Squared approach and another suggested method invloves using a Maximum Likelihood approach to estimate p(i) and then taking the Log[p(i)]. The scaling is somewhat diffrerent between these two approaches. Can anyone advice me on why, which is more reasonable, etc. Or does anyone have any other advice? Many Thanks Aaron

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Electrical Engineering Dept., Columbia University