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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Yes, and this should also be exactly the recipe on the FAQ page.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Best,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Eric<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Yoni Levy [mailto:yoniilevy@gmail.com]
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<b>Sent:</b> dinsdag 6 januari 2015 13:11<br>
<b>To:</b> fieldtrip@science.ru.nl<br>
<b>Subject:</b> Re: [FieldTrip] Cluster-based permutation tests for between-subject design<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">More specifically, I was wondering about the recipe for <span style="font-size:9.5pt">a 2x2 mixed between-within-subjects design (with 2 groups of unequal size). </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">For instance, provided I have two groups: the first with subj1 till subj12 (12 participants), and the second with subj21 till subj34 (14 participants), and each participant with 2 conditions. </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Then for each participant i calculate the difference between the 2 conditions (subjXdiff) (say for instance, the difference in power in each grid point), and then compare the two groups with an indepsamplesT:
subj1diff, ... subj12diff versus subj21diff,.. subj34diff.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.5pt">Would such an indepsamplesT test correspond to testing the interaction between group and condition?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
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<p class="MsoNormal">Yoni<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, Jan 6, 2015 at 9:13 AM, Yoni Levy <<a href="mailto:yoniilevy@gmail.com" target="_blank">yoniilevy@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Dear Eric, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Following up on the thread from about 2 months ago, in your reply (in FAQs:
<a href="http://fieldtrip.fcdonders.nl/faq/how_can_i_test_an_interaction_effect_using_cluster-based_permutation_tests" target="_blank">
http://fieldtrip.fcdonders.nl/faq/how_can_i_test_an_interaction_effect_using_cluster-based_permutation_tests</a>), when you mention the mixed between-within-subjects design, I assume that you refer to a design with two subjects groups which are of equal size
(e.g. 12 participants vs 12 participants, and not 14 participants vs 12 participants). I assume that in the latter case (unequal groups' size), testing the interaction effect would not be possible; correct? <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks, <o:p></o:p></p>
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<p class="MsoNormal"><span style="color:#888888">Yoni<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:#888888"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#888888"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="color:#888888"><o:p> </o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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