from LSU Laboratory School for allowing me to work with their young students for the consumer test with children. My parents Elsa and Jose H. Pavon, for their financial and love support. My aunt Elba Pavon, for her assistance in educating and taking care of my son Lucas, and her company. Lucas, my dear son, for giving me happiness and inspiration to keep on my work everyday. Most of all Roberto, my loving and tolerant husband and best friend, whose advice and support have helped me accomplish

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... erything. iii TABLE OF CONTENTS ACKNOWLEDGEMENTS..................................................................................ii LIST OF TABLES......................................................................