|Dr. William J.F.Lew|| who gave me full instruction in the course of the whole study.|
|Professor C.Y.To|| who gave me recommendations to the schools, which enabled the study to be carried out.|
|Dr. Sing Lau || who gave me suggestions and encouragement.
|Dr. Lee Yan C.C.|
|Dr. Benjamin Chan ||who served as the judges in the Panel for grading the prestige of the schools, which enabled me to decide the schools to be invited for this study.
|Dr. S.C. Cheng
|Mr. C.M.Chung|| who helped me to improve the computer programmes and to interpret the computer printouts.