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No significant LV's!
jcrofts
Posted on 07/04/09 11:50:46
Number of posts: 29
j crofts
jcrofts posts:

Hi,

If the permutation tests return only one significant latent variable - which can't be used to infer differences between classes right?  Does this mean my data is garbage or that PLS (in this form anyway) is inappropriate?

Cheers,
Jonathan

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Untitled Post
rmcintosh
Posted on 07/05/09 12:51:03
Number of posts: 394
rmcintosh replies:

Its hard to know how to interpret your outcome unless you can be a bit more specific on the pattern on your significant LV.  In general, however, I wouldn't say that non-significant results mean either that your data are garbage or that PLS is inappropriate - it really depends on what question you are trying to answer.  We have data sets where there were no significant changes in activity, yet quite robust brain-behavior and functional connectivity patterns were identified.  Given the richness of imaging data, its not wise to focus on a single analysis to make the determination of whether you have anything in your data set.

Randy



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