The four generated clusters of confidence with examples of items, number of included items (n) and Cronbach’s α.

The four generated clusters of confidence with examples of items, number of included items (n) and Cronbach’s α.生成得到的四组置信度聚类，附带有条目示例、纳入条目数（n）以及克朗巴哈α系数（Cronbach’s α）。