Acknowledgments
I am deeply indebted to Dr. Keiko Samimy of the Ohio State University for her patient guidance and elucidatory advice while I conducted the research on which this book is based. Sincere and heartfelt gratitude also goes to Dr. Alan Hirvela, who, both as a knowledgeable professor and as an unforgettable friend, has provided me with an unfailing source of help, encouragement, and guidance for my academic studies as well as for my personal life. Similar gratitude should be extended to Dr. Galal Walker, who has provided me not only with moral support and invaluable encouragement, but also with scholarship to complete my research.
I am very grateful to Dr. Donald Winford and Dr. Charles Hancock for their valuable and insightful comments on the early draft; to Dr. Elizabeth Bernhardt, Dr. Diane Birckbichler, Dr. Diane Belcher, Dr. Michael Riley, and Dr. Laurel Richardson, for their help in shaping my view of second language acquisition; to Weiping Yang and Zhiying Lu for their help in collecting the data; and to Kelly Dickhof, a neighbor and