结果：以机构为单位共发放调查问卷35份，回收有效问卷29份，有效回收率为82.9%。
RESULTS: Totally 35 questionnaires were sent out, 29 were effectively received with effective recovery of 82.9%.
经过指标筛选，获得有效问卷421份，有效回收率达到91%。
After screening indicators, 421 questionnaires were distributed, and the recovery rate of 91%.
结果：共发放问卷150份，回收有效问卷121份，有效回收率为80.67%。所设计的调查问卷信度、效度均良好。
RESULTS: Totally 150 questionnaires were sent out, 121 were effectively received with effective recovery of 80.67%, and the reliability and validity of the designed questionnaires were good.
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