Using exploratory and confirmatory factor analysis, the factor structure of the extraversion dimensions has been identified through investigating 1420 subjects; the items were selected and CEQ was developed.

• 通过对1420名被试的测查，结合采用探索性因素分析和验证性因素分析确定外向性维度的因素结构界定基本内涵，筛选项目编制外向性量表。