When I conducted sem using lavaan, I found the variance of a factor was negative. So I fixed the variance of this factor to be zero. Should I fix the covariance with this factor also to be zero? I knew that in Mplus, when one constrained the variance to be zero, its covariance would automatically be zero. Is it necessary to set the covariance to zero?
Is it necessary to fix covariance to zero when the variance of a factor is fixed at zero?
450 Views Asked by mushroomfan At
1
There are 1 best solutions below
Related Questions in R
- in R, recovering strings that have been converted to factors with factor()
- How to reinstall pandoc after removing .cabal?
- How do I code a Mixed effects model for abalone growth in Aquaculture nutrition with nested individuals
- How to save t.test result in R to a txt file?
- how to call function from library in formula with R type provider
- geom_bar define border color with different fill colors
- Different outcome using model.matrix for a function in R
- Creating a combination data.table in R
- Force specific interactions in Package 'earth' in R
- Output from recursive function R
- Extract series of observations from dataframe for complete sets of data
- Retrieve path of supplementary data file of developed package
- r package development - own function not visible for opencpu
- Label a dataset according to bins of a histogram
- multiply each columns of a matrix by a vector
Related Questions in R-LAVAAN
- Adding more horizontal levels and standard errors in SemPaths diagram
- Error while installing RTextTools 1.4.2 (Windows)
- CFA in R (lavaan) with ordinal data - polychoric correlation included?
- R (lavaan): How to compare CFA models estimated with DWLS (alias WLSMV)
- Latent variable from a set of multicollinear variables
- Modification indices in lavaan package when freeing some fixed parameters
- lavaan interaction regression model: sample covariance matrix is not positive-definite
- R Decision column in lavaan package modification indices output
- Ordinal + Continuous interaction in lavaan
- Error in lavaan, "row names contain missing values", when using summary() , requesting rsquare
- Cross-lagged panel model in lavaan - error says duplicate paths but there are no duplicate paths
- duplicate model element - lavaan
- Error in names(temp_bhat) when using emmeans() on a lavaan() object
- Multigroup SEM in lavaan: no variance in covariate in one group, how to proceed?
- How do I classify binary indicator variables in SEM using WLSMV in R (lavaan)
Related Questions in FACTOR-ANALYSIS
- Obtain unstandardized factor scores from factor analysis in R
- using statset for changing the properties in matlab
- Factor Analysis in R, Error
- Error in Factor Analysis - Starting Values
- CFA in R (lavaan) with ordinal data - polychoric correlation included?
- Factor Analysis in sklearn: Explained Variance
- R (lavaan): How to compare CFA models estimated with DWLS (alias WLSMV)
- Latent variable from a set of multicollinear variables
- Modification indices in lavaan package when freeing some fixed parameters
- How can I get standardized factor loadings with the semopy package in python?
- Measurement invariance testing in multigroup CFA – scaling methods
- Garch Standardization of returns-FactorAnalytics package in R
- "calculate_bartlett_sphericity" test outputing nan values
- psych FA biplot colour by group
- Error in R: 'system is exactly singular' when doing factor analysis
Related Questions in STRUCTURAL-EQUATION-MODEL
- Modification indices in lavaan package when freeing some fixed parameters
- empirical t-values with bootsempls in R, transform console output to vector
- Multigroup SEM in lavaan: no variance in covariate in one group, how to proceed?
- How do I classify binary indicator variables in SEM using WLSMV in R (lavaan)
- Error in plsm... manifest variables must be contained in data
- Create Well-Being Latent Variable in Lavaan from Depression/Anxiety Questionnaire
- Issue with function multi_items from package SEMinR
- Why R-error "NAs are not allowed in subscripted assignments" when running the modindices command to inspect improvements of SEM?
- Discrete Choice modelling in Lavaan package - R
- AVE and Omega values for higher order factors (lavaan and semTools)
- SEM: Cross-lagged model on 5 waves with fixed effects
- How do I update scripts from OpenMx 1 to OpenMx 2?
- Specifying a latent variable with a single indicator in lavaan
- PiecewiseSEM - Error in cbind(ret, isSig(ret[, 5])) : object 'ret' not found
- How to interpret output "Percent_Sig" in ParcelAllocaiton Function (Sem Tools)?
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Fixing negative variance estimates to 0 is not a good idea:
https://doi.org/10.1037/1082-989X.13.2.150
https://doi.org/10.1177/0049124112442138
https://doi.org/10.1037/met0000384
But indeed, lack of variance implies lack of covariance, so you would have to (in
lavaan) make that factor orthogonal to be consistent.