SEM error

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alancai1974
Posts: 28
Joined: Sat May 16, 2020 1:19 pm

SEM error

Post by alancai1974 »

Hello :
I just find the new structural equation modeling module and give it a try. I test a very simple model. But the system kept telling me that "lavaan error, please refit the model with test=standard"
could you please know me know what went wrong here?
I attach the file here
Thanks
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MAgojam
Posts: 421
Joined: Thu Jun 08, 2017 2:33 pm
Location: Parma (Italy)

Re: SEM error

Post by MAgojam »

Hi, @ alancai1974.

Select all your variables and with Data>Setup>Measure type pass them from Nominal to Continuos.

Cheers,
Maurizio
alancai1974
Posts: 28
Joined: Sat May 16, 2020 1:19 pm

Re: SEM error

Post by alancai1974 »

Thank you very much. Now it's working. just have 3 more questions:

1. Is there a way to get average variance extracted (AVE)? This is an important measure for structural equation modeling.
2. Is it possible to do formative model here? I know that this could be constructed by using Iavaan, but the SEM module does not seem to have this option.
3. Is it possible to do a path analysis? (i.e., no latent variables. Just a path model between the variables)?

Thanks
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mcfanda@gmail.com
Posts: 457
Joined: Thu Mar 23, 2017 9:24 pm

Re: SEM error

Post by mcfanda@gmail.com »

Hi, as regards the path analysis, you have three options in jamovi:
1) you can use PATHj module, which is explicitly built for path analysis models
2) you can use SEMLj syntax and define your path model with lavaan syntax
3) you can use SEMLj interactive, set one indicator for each latent variable, and define your path model on the latent variables
All three methods give the same results. Method 1 vs 2-3 would offer you different options, so check out which method is more convenient for your analysis
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mcfanda@gmail.com
Posts: 457
Joined: Thu Mar 23, 2017 9:24 pm

Re: SEM error

Post by mcfanda@gmail.com »

As regards point 2, at the moment (in this version) is not possible to define formative latent variables
alancai1974
Posts: 28
Joined: Sat May 16, 2020 1:19 pm

Re: SEM error

Post by alancai1974 »

thanks
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mcfanda@gmail.com
Posts: 457
Joined: Thu Mar 23, 2017 9:24 pm

Re: SEM error

Post by mcfanda@gmail.com »

The next version (0.3.0) due in a few days will allow for formative models in the (syntax) submodule. It'll accept the `<-` operator of lavaan for that
Thanks for the suggestion, we did not think about it before :blush:
hafizmuhammadmateen
Posts: 1
Joined: Tue Mar 07, 2023 6:35 pm

Re: SEM error

Post by hafizmuhammadmateen »

this analysis has terminated due to hitting reources limit
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mcfanda@gmail.com
Posts: 457
Joined: Thu Mar 23, 2017 9:24 pm

Re: SEM error

Post by mcfanda@gmail.com »

yes, it was due to greek letters in the columns titles not hadled by windows. It has been fixed jot (1.1.5)
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