One of the most fundamental problems when starting a project in structural equation modeling is determining the sample size.  The SEM-PLS software gives you the ability to specify the sample size for your model.

In SEM-PLS, you can determine sample size by the following path:

1-SEM-PLS

2- Sample Size

The SEM-PLS software offers three methods for determining the sample size. These three methods are The Minimum  Method, Inverse Square Root Method, and 10-Times Rule Method. See details of these three methods in Introduction to SEM-PL: D. Sample Size.