GeSCA

is a web-based software program for generalized structured component analysis that represents a component-based approach to structural equation modeling. This program provides a graphical user interface that allows users to easily express their model as a path diagram and to view the estimates of model parameters.

GeSCA is free of charge and capable of analyzing up to 1000 cases and 100 observed variables.

WEB GESCA runs in all major web browsers without JAVA installed.

GeSCA currently enables users to:

  • conduct all single-group analyses of user-specified structural equation models.
  • use the bootstrap method to estimate the standard errors of parameter estimates.
  • specify both reflective and formative indicators.
  • impose user-defined or equality constraints on loadings and path coefficients.
  • conduct all multi-group analyses with the optional imposition of cross-group constraints.
  • deal with missing observations via three different procedures.
  • handle second-order latent variables in single-group analyses.

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Old version GESCA only runs in Internet Explorer.

The latest java plug in (Java 7u51) creates a problem for GeSCA.

One way to solve it is to make an exception rule for our server 50.116.62.169 (sem-gesca.org). 
•If you are using a Windows operating system, click on Start Button, then choose Control Panel.

•Enter "Java" in the search text area on the top right of the window that appears. This will get you to the Java Control Panel.

•If you are using a Mac operating system, click on the apple icon, choose "system preferences" and 
click on the "Java" icon to get to the Java Control Panel.*a helpful link for Mac users*

•Once you have opened the Java Control Panel, click on the 'Security' tab.
•Click on the 'Edit Site List', then click on the 'Add' Button and type in the following text.
http://50.116.62.169 
http://www.sem-gesca.com 
http://www.sem-gesca.com/gsca.php 
http://www.sem-gesca.org 
http://www.sem-gesca.org/gsca.php 
Click "OK" and restart your computer. Then GeSCA should work.

In some instances, the 'Edit Site List' button will not be visible.
This often occurs when more than one version of the Java plug-in is installed on your computer (including the latest one - java7u51). In that case, it is necessary to uninstall all the old versions of java except the latest one (java7u51). Then the 'Edit Site List' button should become visible. 

Thanks for using GeSCA !