used by people in more than 230 countries!
Calculator: A-priori Sample Size for Structural Equation Models
A-priori Sample Size Calculator for Structural Equation Models
This calculator will compute the sample size required for a study that uses a structural equation model (SEM), given the number of observed and latent variables in the model, the anticipated effect size, and the desired probability and statistical power levels. The calculator will return both the minimum sample size required to detect the specified effect, and the minimum sample size required given the structural complexity of the model.
Please enter the necessary parameter values, and then click 'Calculate'.