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I wish to thank the members of my dissertation committee, Drs. Hawkins, Gouvier and Copeland, for their assistance and support throughout the course of this project. I would like to extend special thanks to my committee chairman, Dr. William F. Waters, for the many hours of guidance he provided me with during the study and during all of my time at LSU. I would also like to extend special thanks Laura Benton for the great job she did in scoring and electronic transmission of critical data. Additionally, thank you to Mark Hurry, Ph.D., and the undergraduate and graduate students who aided me with data collection; without their understanding and flexibility, this project would not have been possible. Thanks also to all of the subjects who volunteered their time to participate. Lastly, I would like to thank my family- Thomas, Charlotte, Paul, and Cheryl Lajos – and Allen Fugler for their unconditional support and encouragemen