Principles and practice of structural equation modeling, third. Confirmatory factor analysis of kabcii in rural south africa. Getting started in factor analysis using stata 10 ver. Confirmatory factor analysis using stata part 1 youtube. Multivariate analysis slides the final topic we consider is factor analysis.
Confirmatory factor analysis using stata march 2020. Confirmatory factor analysis part 1 psychology, statistics, research methods. This video provides a basic introduction to confirmatory factor analysis using the drawing program in stata. Would such a well fitting cfa be appropriate to use in further analyses. Another reason why defining value is such a tough nut to crack, lays in the fact that it is. All subsequent analyses were conducted using stata version statacorp. Confirmatory factor analysis for applied research, second edition. In this portion of the seminar, we will continue with the example of the saq.
Confirmatory factor analysis using stata march 2020 duration. I demonstrate how to draw out the model using the drawing icons, etc. I have some pilot data from a social survey of peoples belief in the social cohesion of their neighbourhoods. This article describes the confa command, which fits confirmatory factor analysis models by maximum likelihood and provides diagnostics for the fitted models. If you look in the sem manual, examples 1, 3, and 15 will give you a pretty comprehensive view of how to use the sem command for this.
Therefore, when composite laminate is loaded, for example under tensile, matrix start to break as matrix cracks and debonding between fiber and matrix. Descriptions of the command and its options are given, and some illustrative examples are provided. Confirmatory factor analysis borrows many of the same concepts from exploratory factor analysis except that instead of letting the data tell us the factor structure, we predetermine the factor structure and perform a hypothesis test to see if this is true. Without this factor, the 3 remaining factors did converge in my cfa model in stata. Here is a workflow for a cfa that you should be able to adapt. The results of the exploratory factor analysis indicate that all five of these items load nicely onto a single latent factor. Confirmatory factor analysis is just a particular type of sem.
We can start with an example of confirmatory factor analysis using five variables related to. Use principal components analysis pca to help decide. If you are using a version of stata older than 12 which you should have told us in your post, then you will not have an sem command. One of those books that sits on your shelf for years.
Chapter 2 discusses confirmatory factor analysis cfa and its applications. Show full abstract testing construct validity using confirmatory factor analysis, the emergence of this effect tend to reducing the goodness of fit indices of the model. Sem and partial least square sem are methods while spss amos and smart. Review and cite sem analysis protocol, troubleshooting and other methodology information. Confirmatory factor analysis statalist the stata forum. Can you conduct multilevel secondorder factor analysis in stata. Sem with continuous factor indicators and an interaction between two factors following is the set of multiple group examples included in this chapter. Please note that a subset of the data is used for some examples. Two factor cfa to begin, we should start on a good note there is in my opinion really good news. Confirmatory factor analysis cfa is used to study the relationships between a set of observed variables and a set of continuous latent variables. Can you conduct multilevel secondorder factor analysis in. Two types of factor analysis exploratory it is exploratory when you do not. Similar to factor analysis, but conceptually quite different.
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