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<DIV><FONT face=Arial size=2>Sorry for repeating my post, but I just want to be
sure that I understand everything correct.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV style="FONT: 10pt arial">----- Original Message -----
<DIV style="BACKGROUND: #e4e4e4; font-color: black"><B>From:</B> <A
title=olga@GRAPHICMIND.INFO href="mailto:olga@GRAPHICMIND.INFO">Olga Sysoeva</A>
</DIV>
<DIV><B>To:</B> <A title=FIELDTRIP@NIC.SURFNET.NL
href="mailto:FIELDTRIP@NIC.SURFNET.NL">FIELDTRIP@NIC.SURFNET.NL</A> </DIV>
<DIV><B>Sent:</B> Monday, May 15, 2006 8:46 AM</DIV>
<DIV><B>Subject:</B> [FIELDTRIP] cluster randomization</DIV></DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Dear list members,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Am I right, that after cluster randomization I will
everytime get smaller amount of significant results, than after
traditional t-test?</FONT></DIV>
<DIV><FONT face=Arial size=2>I mean if set cfg.alphathreshold = 0.05, and choose
dependent t-test my clusters can only include the channels and time-points that
is significant (p<0,05) </FONT></DIV>
<DIV><FONT face=Arial size=2>when I just use dependent t-test to compare
the two condition time by time on every channel. And only after this first step
analysis the cluster is formed based </FONT></DIV>
<DIV><FONT face=Arial size=2>on this t-test. Probably I am missing something,
but after clusterrandomization analysis I've got a cluster (even
significant, but it should not matter) with differential activation at
posterior left site, although t-test (made in eeglab) on this
paticular channel does not show any significant points.</FONT></DIV>
<DIV><FONT face=Arial size=2>Can somebody comment on it?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial><FONT size=2>Best Regards,</FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2>Olga.<FONT
size=+0> </FONT></FONT></FONT></DIV>
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