Date of Award
2009
Degree Type
Thesis
Degree Name
Master of Science
Program
Epidemiology and Biostatistics
Supervisor
Dr. Guang Yong Zou
Abstract
The intraclass correlation coefficient (ICC) has application in several fields of research. Various confidence interval methods for a single ICC are available. However, statis tical inference for multiple ICCs has primarily relied on hypothesis testing which cannot distinguish between statistical significance and practical importance. The focus of this thesis is to develop and evaluate confidence interval procedures for a difference between two correlated ICCs with variable class sizes. The strategy used in the thesis is to recover variance estimates needed for the confidence interval for the difference from the confidence limits for single ICCs. Simulation results show that the procedure based on inverse hyperbolic tangent transformation for single ICCs performs well. The Galton’s 1886 dataset on siblings heights is used to illustrate the methodology.
Recommended Citation
Kowalik, Danuta, "Confidence interval estimation for a difference between two correlated intraclass correlation coefficients with variable class sizes" (2009). Digitized Theses. 3851.
https://ir.lib.uwo.ca/digitizedtheses/3851