Third Party Software
jhilgard
Joined: 04/03/2021
OpenMX status1: 5 and SEs of estimates?
Hi there. I'm using `metaSEM::meta()` to conduct some single-level meta-analyses.
In some subset analyses, as *k* gets smaller, OpenMX seems to struggle to estimate the variance, estimating Tau2 as low as I will set `RE.lbound`. I can resolve the error message by running a fixed-effects model by setting `RE.constraint = 0`. However, when I do this, the standard error for the intercept increases by 33%. This changes the statistical significance of the intercept.
- Read more about OpenMX status1: 5 and SEs of estimates?
- 2 comments
- Log in or register to post comments
angelprieto
Joined: 03/16/2021
Saturated Model and Non positive - OSMASEM
Dear Cheung,
First of all, thank you for your helpful and inspiring contribution. We are very grateful for your interesting work and now we are trying to follow your steps and conduct a meta-analysis. However, on the way, we have had some doubts that we wanted to share with you as we are looking for some advice.
- Read more about Saturated Model and Non positive - OSMASEM
- 5 comments
- Log in or register to post comments
angelprieto
Joined: 03/16/2021
rerun() pastes the steps in R Markdown
Dear Cheung,
Congratulate on the great work done in the field of SEM and METASEM. Your contributions are very useful for the scientific and educational community.
I am using the rerun() function in markdown, to avoid pasting the steps of this function in the document I try to include some parameters of other functions that use functions that rerun uses. For example, silent = False from mxRun (). Any idea how to solve it?
Thank you for your attention,
- Read more about rerun() pastes the steps in R Markdown
- 1 comment
- Log in or register to post comments
Kwabenaaaddo
Joined: 02/01/2021
Mediation Model
Hello all,
I am trying to fit a mediation model where each of my main variables (BS, IND, WOB, DUA, BMEET and DIROWN) is mediated by another variable(BNKRISK). I have been following the model following Cheung (2021): Synthesizing Indirect Effects in Mediation Models with Meta-Analytic Methods: Supplementary Materials 2. I will proceed sequentially using to help you to follow the steps and where I encountered the error. This the model is
- Read more about Mediation Model
- 3 comments
- Log in or register to post comments
Aman Asija
Joined: 03/04/2021
Regarding Cor2DataFrame Function
Dear Professor Cheung,
- Read more about Regarding Cor2DataFrame Function
- 4 comments
- Log in or register to post comments
hansol6461
Joined: 02/17/2021
Moderator analysis using OSMASEM
Dear Professor Cheung,
- Read more about Moderator analysis using OSMASEM
- 5 comments
- Log in or register to post comments
JErola
Joined: 02/18/2021
umxACE, same/different sex twins
Hello,
We are fitting twin ACE models (and hopefully later twin ACE Cholesky models) using Finnish register data with no information on twin's zygosity, relying on same/different sex identification approach. This seems to be pretty straightforward with OpenMX but we have not found a way to do it with umxACE. Presumably, this is something that could be achieved with umxModify by changing paths but we were not able figure out how and were not able to find any examples either. Any suggestions how to proceed?
Best, Jani
- Read more about umxACE, same/different sex twins
- 2 comments
- Log in or register to post comments
vildan Bağcı
Joined: 12/04/2019
Error in tssem2
Hi Cheung,
I want to test a higher order CFA model by metaSEM, but i have only item correlations. In your book, a higher order model of Big Five model has been included. When i examined this example, i realised that i need the correlations between factors.
- Read more about Error in tssem2
- 1 comment
- Log in or register to post comments
MelodyBing
Joined: 02/02/2021
MetaSEM OpenMx status1:6 issue
Hi Dr. Cheung and everyone,
- Read more about MetaSEM OpenMx status1:6 issue
- 1 comment
- Log in or register to post comments
lior abramson
Joined: 07/21/2017
Can umx asses a genetically-informative cross-lagged twin model?
Hello,
I would like to assess a genetically-informative cross-lagged twin model (e.g., a model like in Burt et al., 2005- "How are parent-child conflict and childhood externalizing symptoms related over time? Results from a genetically informative cross-lagged study").