QA differences

[Amy R]

Dear Dr. Frank,

I have done QA analysis using an older version of DSI Studio (I don't remember the version), and the QA values were around 0.78.

Recently, I updated the software and had to add additional subjects to strengthen the sample size. What I noted with the new version is that the mean QA is around 0.27.

 

Do you know why there is a discrepancy in the QA values between the old and new versions?

[Fang-Cheng Yeh]

There is a major change in QA after the 2022 August versions: https://groups.google.com/g/dsi-studio/c/t-kSFxXrGFU?pli=1

You may use an older version to create FIB files (I am sorry for the hassle caused).

Best regards,

Frank

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[Amy R]

Ah! I saw this email thread before and completely forgot about this. Thanks for your patience.

I'll reanalyze the whole data with new version. No big deal! Thanks :)

[Amy R]

One follow-up question, Dr. Frank -  Can I use the old FIB files (calculated using old version) to calculate the (new) QA using the new version?

[Fang-Cheng Yeh]

The NQA in the old FIB file is the QA in the new FIB file.

Hope this helps,

Frank

To view this discussion on the web visit https://groups.google.com/d/msgid/dsi-studio/4061b8af-506d-42ec-8e89-70fb101fb461n%40googlegroups.com.