Methods Two-level variance component model was used by MLWIN2.0 to evaluate the reliability of satisfaction scale within investigators.

方法采用软件MLWIN2．0，运用两水平方差成分模型评价满意度量表调查员间的信度；

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The hypothetical model includes three main aspects, namely, influencing factors, overall satisfaction and emotional factors. Each level also includes a number of dimensions.

模型包括三个主要层面，即影响因素、整体满意度和情感因素，每个层面又包括若干维度。

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