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lavaan
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Welcome to the lavaan discussion group. Lavaan is an R package for latent variable analysis.
If you enjoy using lavaan, please consider giving a donation to support the lavaan project. See:
https://lavaan.ugent.be/about/
donate.html
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Kinga Bierwiaczonek
4/9/20
Negative variances in Autoregressive Latent Trajectory Model w
Dear all, I am trying to fit an autoregressive latent trajectory model with structured residuals on a
unread,
growth
negativevariance
variance
Negative variances in Autoregressive Latent Trajectory Model w
Dear all, I am trying to fit an autoregressive latent trajectory model with structured residuals on a
4/9/20
Brandon Weiss
,
Terrence Jorgensen
2
4/9/20
Growth model interpretation question
should the .842 loading on s (see output) influence my interpretation of the slope mean (ie, .221)
unread,
fit
freeing
growth
Growth model interpretation question
should the .842 loading on s (see output) influence my interpretation of the slope mean (ie, .221)
4/9/20
Brandon Weiss
,
Mauricio Garnier-Villarreal
4
4/3/20
Using NA* in growth model not matching MPlus
Good was an easy fix then On Friday, April 3, 2020 at 1:44:49 PM UTC-5, Brandon Weiss wrote: Y'
unread,
growth
lavaan
sem
Using NA* in growth model not matching MPlus
Good was an easy fix then On Friday, April 3, 2020 at 1:44:49 PM UTC-5, Brandon Weiss wrote: Y'
4/3/20
DENNIS RUENGER
, …
Mauricio Garnier-Villarreal
3
12/16/19
Growth mixture model with unobserved/latent groups
In chapter 7 of Growth Modeling (https://www.guilford.com/books/Growth-Modeling/Grimm-Ram-Estabrook/
unread,
growth
latent
mixture
Growth mixture model with unobserved/latent groups
In chapter 7 of Growth Modeling (https://www.guilford.com/books/Growth-Modeling/Grimm-Ram-Estabrook/
12/16/19
Carly P
,
Terrence Jorgensen
2
11/9/19
Estimating exogenous covariances worsening model fit
growth() is only for simple growth curves (ie, with exogenous growth factors). Draw a path diagram of
unread,
covariance
exogenous
fit
growth
model
Estimating exogenous covariances worsening model fit
growth() is only for simple growth curves (ie, with exogenous growth factors). Draw a path diagram of
11/9/19
Matti Cervin
,
Terrence Jorgensen
2
7/13/19
Latent growth curve model with covariance between indicators
This is not a lavaan issue. Consider posting your more general SEM questions on SEMNET: http://www2.
unread,
growth
Latent growth curve model with covariance between indicators
This is not a lavaan issue. Consider posting your more general SEM questions on SEMNET: http://www2.
7/13/19
AV AV
, …
Andy Supple
6
6/26/19
growth curve model - problems with standardised coefficients
Thank you very much for your help! It makes more sense to me now, and it's true, I was probably
unread,
growth
indices
latent
lavaan
model
sem
standardized
growth curve model - problems with standardised coefficients
Thank you very much for your help! It makes more sense to me now, and it's true, I was probably
6/26/19
Craig Van Pay
,
Christopher David Desjardins
3
6/10/19
In multiple group LGC model, how do I constrain residual variances of mani. vars within each group?
Wow, that's easy enough, thanks Christopher! On Monday, June 10, 2019 at 1:12:47 PM UTC-5,
unread,
curve
growth
latent
multigroup
residual
In multiple group LGC model, how do I constrain residual variances of mani. vars within each group?
Wow, that's easy enough, thanks Christopher! On Monday, June 10, 2019 at 1:12:47 PM UTC-5,
6/10/19
martij...@hotmail.com
,
Mauricio Garnier-Villarreal
2
6/6/19
cross-lags in single times series of multiple variables
Martijn lavaan will not work with only 1 subject. For something like this I think the best option is
unread,
cross-lagged
growth
pathmodel
cross-lags in single times series of multiple variables
Martijn lavaan will not work with only 1 subject. For something like this I think the best option is
6/6/19
michelle roth
, …
Terrence Jorgensen
6
5/26/19
comparing between male and female model
The thing is, I want to make latent growth curve modeling, not a APIM model. I also checked the APIM,
unread,
growth
lavaan
model-comparison
sem
test-statistics
comparing between male and female model
The thing is, I want to make latent growth curve modeling, not a APIM model. I also checked the APIM,
5/26/19
Matti Cervin
,
Terrence Jorgensen
5
4/8/19
Fitting growth curve model with ordinal indicators and imputed data
Thank you, Terrence. No, I have not read through the whole paper yet. I struggle with the math
unread,
curve
growth
lavaan
Fitting growth curve model with ordinal indicators and imputed data
Thank you, Terrence. No, I have not read through the whole paper yet. I struggle with the math
4/8/19
Matti Cervin
,
Terrence Jorgensen
4
4/6/19
Growth curve model with imputed data (mice)
Do you know if there is code anywhere that shows you have to do it? The ?model.syntax help page
unread,
error
growth
imputation
Growth curve model with imputed data (mice)
Do you know if there is code anywhere that shows you have to do it? The ?model.syntax help page
4/6/19
rothmi...@hotmail.com
,
Terrence Jorgensen
2
3/6/19
time invariant covariates in LGM
I`d like to add a time-invariant covariate. How can I do this? Use the regression operator: ~ http://
unread,
growth
latent
lavaan
r
sem
time invariant covariates in LGM
I`d like to add a time-invariant covariate. How can I do this? Use the regression operator: ~ http://
3/6/19
Yuen Wan Ho
,
Terrence Jorgensen
2
2/28/19
ways to handle negative variance in latent growth modeling
How can I handle the problem? There are numerous repeated answers to this question on this forum.
unread,
estimator
growth
lavaan
negativevariance
ways to handle negative variance in latent growth modeling
How can I handle the problem? There are numerous repeated answers to this question on this forum.
2/28/19
rothmi...@hotmail.com
,
Terrence Jorgensen
5
2/19/19
latent growth curve modeling - lavaan
Do you have some reading/tutorial requests on that (with R code)? http://www2.gsu.edu/~mkteer/semnet.
unread,
LGM
Longitudinal
fit
growth
latent
lavaan
model-fit
sem
latent growth curve modeling - lavaan
Do you have some reading/tutorial requests on that (with R code)? http://www2.gsu.edu/~mkteer/semnet.
2/19/19
Marcos Angelini
,
Terrence Jorgensen
5
2/5/19
Growth curve model
Thanks a lot Terrence! I will read these references. El martes, 5 de febrero de 2019, 7:22:18 (UTC-3)
unread,
curve
data
growth
invariance
Growth curve model
Thanks a lot Terrence! I will read these references. El martes, 5 de febrero de 2019, 7:22:18 (UTC-3)
2/5/19
Peter Hilpert
,
Mauricio Garnier-Villarreal
5
1/11/19
Extract data from growth curve model
Peter In the ?lavPredict page there is the following example to help adding them back to the original
unread,
Mplus
fscore
growth
Extract data from growth curve model
Peter In the ?lavPredict page there is the following example to help adding them back to the original
1/11/19
Brie M
,
Chao Xu
2
12/9/18
decent growth model fit but negative variance error
This warning is usually due to model misspecification (eg, a covariance is fixed to 1 when it should
unread,
error
growth
variance
decent growth model fit but negative variance error
This warning is usually due to model misspecification (eg, a covariance is fixed to 1 when it should
12/9/18
Elissa Hamlat
, …
Christopher Desjardins
14
11/29/18
growth curve model w/ manifest predictors (and their interaction) + plot
Hi Elissa, I still think that website will give you every thing you need. Click through it and take a
unread,
curve
growth
interaction
latent
plotProbe
probe2WayMC
semTools
growth curve model w/ manifest predictors (and their interaction) + plot
Hi Elissa, I still think that website will give you every thing you need. Click through it and take a
11/29/18
fenn.st...@gmail.com
, …
Terrence Jorgensen
8
10/18/18
problem to define a multilevel latent growth curve model (using the cluster option in lavaan)
Could I ask you how do you use ICC measures in practice? Do you prefer certain ICC measures? Only
unread,
curve
growth
multilevel
problem to define a multilevel latent growth curve model (using the cluster option in lavaan)
Could I ask you how do you use ICC measures in practice? Do you prefer certain ICC measures? Only
10/18/18
Leslie Rutkowski
,
Yves Rosseel
2
10/7/18
lavaan WARNING: some models are based on a different set of observed variables
to make the models nested, you should add the covariates in the unconditional model too, but fix the
unread,
error
growth
lavTestLRT
lavaan WARNING: some models are based on a different set of observed variables
to make the models nested, you should add the covariates in the unconditional model too, but fix the
10/7/18
Courtney McDermott
9/27/18
Three-level longitudinal SEM--is it possible?
I'm working with three level data (two level with repeated measurements): Emotional Self
unread,
covariance
effect
fit
growth
interaction
latent
lavaan
multilevel
sem
syntax
Three-level longitudinal SEM--is it possible?
I'm working with three level data (two level with repeated measurements): Emotional Self
9/27/18
ericlth...@gmail.com
,
Terrence Jorgensen
2
9/24/18
age definition variables in linear growth model (individually-varying times of observation)
does lavaan have the option to set age as the time metric in a linear growth model, as individually-
unread,
growth
age definition variables in linear growth model (individually-varying times of observation)
does lavaan have the option to set age as the time metric in a linear growth model, as individually-
9/24/18
Isabelle Hansson
, …
Jack Bailey
5
9/25/18
Latent growth curve model with individually varying time points
Thanks for the advice Jack! Den söndag 23 september 2018 kl. 10:53:36 UTC+2 skrev Jack Bailey: Hi
unread,
growth
lavaan
model
time
Latent growth curve model with individually varying time points
Thanks for the advice Jack! Den söndag 23 september 2018 kl. 10:53:36 UTC+2 skrev Jack Bailey: Hi
9/25/18
Amonet
,
Jeremy Miles
3
9/5/18
Latent growth curve model: how to include regressors?
Thank you Jeremy, I should have provided more context. The reason I did not want to regress the
unread,
growth
multilevel
syntax
Latent growth curve model: how to include regressors?
Thank you Jeremy, I should have provided more context. The reason I did not want to regress the
9/5/18
janb...@googlemail.com
,
Terrence Jorgensen
6
8/1/18
Warning message: "some estimated ov variances are negative"
Is there any standardized way on constructing a better fitting model? I would recommend looking at
unread,
error
growth
latent
lavaan
model
negativevariance
variance
warning
Warning message: "some estimated ov variances are negative"
Is there any standardized way on constructing a better fitting model? I would recommend looking at
8/1/18
Ajay Somaraju
, …
Yves Rosseel
6
7/30/18
using factor scores as IVs in growth model
Thank you both so much for your informative responses. I really appreciate it :) On Mon, Jul 30, 2018
unread,
CFA
factor-score
growth
using factor scores as IVs in growth