On 03/06/2018 12:03 PM, Douglas N. Greve wrote:
>
>
> On 03/06/2018 10:14 AM, Avideh Gharehgazlou wrote:
>> Hi,
>>
>> I have a 2 questions regarding properly interpreting results from
>> QDEC. Will you please clarify the following for me?
>>
>> 1. What is the difference between stats table generated after
>> correcting for multiple comparisons (i.e. monte carlo), vs the stats
>> table generated after clicking "find clusters and go to max"? Results
>> from which stats table should be reported? After searching on the
>> web, I am still unclear about what exactly "find clusters and go to
>> max" button does... and whether these are corrected results or not?
> That button just finds clusters an will move the cursor to the maximum
> value inside the cluster. There is no correction for multiple
> comparisons with the "find clusters and go to max" button.
>>
>> 2. My understanding is that "CWP" column in stats table represents
>> p-values of each cluster. However, when I manually convert values in
>> the "max" column (which I assume are freesurfer p-values reported in
>> -log(10)), I get different p-values than what are listed in "CWP"
>> column for each cluster. Again, my question is whether I should
>> report "CWP" values as my p-values or convert manually myself and
>> report those?
> The max is the maximum uncorrected vertex-wise significance in the
> cluster and is unrelated to the clusterwise p-value (CWP).
>>
>> I would really appreciate your help!
>>
>> Thanks so much,
>>
>> Avi
>>
>>
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