Bach T R, Verdile R
J Psychol. 1975 Jul;90(2d Half):269-74. doi: 10.1080/00223980.1975.9915785.
A sample of 279 male and female high school seniors participated in a study on ego identity and personality structure. The adolescents completed the Constantinople Inventory of Psychosocial Development (IPD) and, on the basis of the principal components method of factor analysis, were found to group on three factors: Adolescent Identified, Industry Crisis, and Unresolved Crisis. A further subsample of 86 adolescents also completed the Rasmussen Ego Identity Scale (EIS). Comparisons of the two instruments yielded significant positive relationships on subscales, but indicated differential sources of identity scores and resultant possible misclassification of subjects through the use of a single identity score measure.
279名男女高中毕业生参与了一项关于自我认同和人格结构的研究。这些青少年完成了《君士坦丁堡心理社会发展量表》（IPD），并基于主成分因子分析法，被分为三个因子组：青少年认同组、勤奋危机组和未解决危机组。另外86名青少年的子样本也完成了《拉斯穆森自我认同量表》（EIS）。对这两种工具的比较显示，各分量表之间存在显著的正相关关系，但表明身份得分的来源不同，并且通过使用单一身份得分测量可能会导致对受试者的错误分类。
