美国专业发展学校评价研究

A Research on the Assessment of Professional Development Schools in the US

美国的专业发展学校（PDS）存在至今已有二十余年的历史，其实施效果日益成为人们关注的焦点。美国PDS的效果评价研究包括对其评价框架、方法与程序、结果及原因、发展阶段的回顾与前瞻等问题。

It has been over twenty years since the idea of Professional Development Schools (PDSs) was put forward in the US, and their impacts have become people's concern. The assessing frame, methods and procedures, causes and effects, and developmental stages are all involved in the research on the Assessment of PDSs in the US.