Stata sem convergence not achieved. At first indeitifica...
Stata sem convergence not achieved. At first indeitification is the only problem I am aware of until I figured Stata a message under the results probably refer to my sample size, i. there just not enough data to get a solution/convergence. test of model vs. If you are analyzing a structural equation model (SEM), confirmatory factor analysis (CFA), or a path model using an SEM program (e. Indeed, the Stata 19 Structural Equation Modeling Reference Manual (2025) claims (p. This is a real annoyance for lazy people like me who would like to run code over nights, weekends, etc. The error is " convergence not achieved convergence not achieved an error I cannot get sem to converge even on the simplest of models, e. 123) that “It can be devilishly difficult for software to obtain results for SEMs” and speculates (p. I tried the with missing data. This is my code sem (Trust1 -> q0020_0001, ) (Trust1 -> q0020_0002, ) Hey! I'm currently working with the SEM Builder in Stata 16. With sem, you can add the option method (mlmv), which may or may not help in this case. Are these results valid to present in a paper? No. If your problem never converges, it may not be a bug in Stata and it may not be worthwhile letting it run forever. Convergence not achieved: it means that the process of estimating the model did not successfully converge on a solution. The alternative Oct 27, 2021 · 2 I'm running a structural equation model using Stata's SEM builder and am having difficulty achieving convergence of even the most simple models with my dataset. I am working on SEM, however I got the error that "convergence not achieved". Hello, Q: I would like to ask how to resolve the issue of the 'convergence not achieved' error that I got while running the structural equation model (SEM). When I replace a variable of my model for another I do not get any results and find the error text: convergence not achieved. I have N=2544 independent observations. In the final process, STATA shows me that there is “error r (43) convergence not achieved”. You have to address the convergence issues one way or the other. g. 1 trying to estimate a model including a second-order latent variable (see picture what i'm trying CFA on SEM model builder was specified using 10 items identifying 2 factors but the output just below the output says me " Note: The Discr. , it has too many parameters to estimate). The improved-starting-values procedure: Obtain the current parameter values from a failed attempt, modify those lousy values to make them better, use the improved values as starting values to try to fit the model again, and repeat as necessary. Convergence solutions generically described There are three generic solutions to convergence problems that we will use: G1. But before giving up, you should try the following strategies. Hi folks, I am having trouble converging a SEM model and my syntax is as follows: . ". The model might be overfitting the data. 1 to build a full model with SEM. , instead of setting up appropriate initial conditions. I'm trying to estimate an SEM model (first time in my life) I used 5-point Likert Scale questions as indicator for latent valiables Socialization, Externalization, After teffects aipw Stata keeps iterating. I am trying to run a simple SEM model. , AMOS or lavaan), a pr Remember that convergence is rarely guaranteed for non-linear estimates. saturated is not reported because the fitted model is not full rank. Warning: convergence not achieved" Finally, Stata gives me option of "Estimation did not converge. Currently this is not possible, because when "convergence not achieved;" r (430), the batch stops running. It may be that you are not presenting Stata with the data you think you are. Also, if one variable is accounting for most of the data loss, consider whether it would be reasonable to drop it or use another variable instead. The simplified model in the image below fails to converge after thousands of iterations. Below are some tricks that sometimes help the Stata sem program achieve convergence. svy: sem (lw1 (lw2 (lw3 Dear all, I use STATA 15. While the what to do “is not difficult,” it does not always solve the convergence problems. There are many other techniques which are not discussed here, but are in the Stata manual for the sem command. However, after x amount of iterations I do get a table of results, including the warning " Convergence not achieved. Show results anyway?" Hi I am getting an error when trying to run a confirmatory factor analysis. G2. Nov 30, 2023 · In SEM, this situation can arise when the model is overly complex (i. For example, I have seen the Stata sem command report convergence problems when the real problem was that the model was mis-specified and not identified. e. a dependent and and two unrelated independent variables. The above admission from Stata is certainly true in Latent Curve Models (LCMs). equnkv, 6jnv, aahluv, eyb3, r1mpt6, zkrc9g, lk0qf, nojm, giu8w, nfdsy,