Physical education in Hong Kong has gone through considerable changes over the past 50 years. Still, the pace and the status were relatively slower and lower compared with other subjects. The 1990s saw a gradual shift from sport-oriented to health-focused sports culture. This shift was chiefly highlighted when physical education became one of the eight key learning areas in the millennium year education reform. This article summarizes the major changes over the past 50 years of school physical education in Hong Kong, and anticipates the positioning of the future physical education.香港的體育在過去的五十年經歷了相當大的變化。不過，變化的步伐相比其他科目還是較慢，其地位也相對較低。從九十年代的競技運動面向逐漸轉向較注重健康的體育文化。這種轉變，促使體育在千禧年的教育改革之中成為了八大學習領域之一。本文總結這五十年來的香港體育的轉變情況，並為體育教育的未來定位作一展望。 Copyright © 2014 Hong Kong Baptist University.

Teaching assistants (TAs) play an influential role in primary and secondary schools. But there is an absence in literature about the TA’s efficacy, and to date no instrument is available for measuring TA’s efficacy. The present study aims to develop and validate a scale (Teaching Assistant Efficacy Scale, TAES) for measuring TA’s efficacy on identified capabilities. A total of 531 teaching assistants from Hong Kong schools participated in the survey. The multidimensional Rasch model was used to analyse the data. The results revealed that a 5-dimension structure of TA’s efficacy was supported. The final 30-item version of TAES assesses TA’s efficacy on learning support, teaching support, behaviour management, cooperation, and administrative support. The Rasch reliabilities for all five dimensions were around 0.90. The 6-category response structure worked well for the scale. Further research was recommended to validate and test the robustness of the TAES both in Hong Kong and elsewhere.