AFNI Message Board

Dear AFNI users-

We are very pleased to announce that the new AFNI Message Board framework is up! Please join us at:

https://discuss.afni.nimh.nih.gov

Existing user accounts have been migrated, so returning users can login by requesting a password reset. New users can create accounts, as well, through a standard account creation process. Please note that these setup emails might initially go to spam folders (esp. for NIH users!), so please check those locations in the beginning.

The current Message Board discussion threads have been migrated to the new framework. The current Message Board will remain visible, but read-only, for a little while.

Sincerely, AFNI HQ

History of AFNI updates  

Previous Message Next Message
Message List New Topic Print View
|
srikanth damera
May 06, 2020 10:26AM
Hi AFNI,

So I'm a complete newbie when it comes to structural equation modelling/path analysis, but I am trying to learn more about it and use the 1dSEM and 1dSVAR commands. One thing that I've come across is that 1dSEM seems to estimate separate path coefficients for bidirectional paths. However, from some admittedly basic reading, it seems like these kind of paths cause the model to be unidentified, and the only bidirectional paths allowed simply represent the correlation between the variables. How does the program handle this? Thank you!

Best,

Sri
Reply Quote
RSS
Subject Author Posted

Recursive/Bidirectional Paths in SEM

srikanth damera May 06, 2020 10:26AM

Re: Recursive/Bidirectional Paths in SEM

gang May 07, 2020 10:31AM

Re: Recursive/Bidirectional Paths in SEM

srikanth damera May 10, 2020 10:32PM

Re: Recursive/Bidirectional Paths in SEM

gang May 13, 2020 07:00AM