Proper design of sampling and survey methods can increase substantially the accuracy and usefulness of assessment data.

设计适当的抽样和调查方法，可以充分的提高评估数据的准确性，实用性。

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Methods A total of 310 teachers from 4 middle schools in Huaibei City were selected with stratified random sampling to undergo a survey with teacher job burnout questionnaire(MBI-ES).

方法采用分层随机抽样方法，抽取安徽省淮北市4所中学的310名教师，采用教师职业倦怠量表（MBI-ES）进行调查。

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Methods Complying with the united plan of medical survey nationwide, we combined sampling survey in various layers with general survey and typical survey.

方法遵照全国医疗照射调查的统一方案，采用分层抽样调查、普查和典型调查相结合。

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