Confidence intervals on the among group variance component in the unbalanced one-fold nested design

Abstract

A new method is proposed for constructing a confidence interval on the among group variance component in an unbalanced one-fold nested design. Computer simulation is used to compare this method with alternative procedures. The results indicate that the method performs well over a wide range of design conditions.

Keywords:

• Variance component
• random model
• unbalanced data
• confidence interval