Otis G D, Graham J R, Thacher L
J Med Educ. 1975 Apr;50(4):328-38. doi: 10.1097/00001888-197504000-00002.
Using multivariate statistical techniques, a large number of variables describing medical school characteristics was reduced to five general dimensions of variation. Patterns of factor scores on these five dimensions served as the basis of a typology of 107 U.S. medical schools. The types of schools so identified were found to be related to the proportions of graduates entering different areas of medicine.
运用多元统计技术，大量描述医学院特征的变量被归纳为五个总体变异维度。这五个维度上的因子得分模式构成了107所美国医学院类型划分的基础。研究发现，如此确定的学校类型与进入不同医学领域的毕业生比例有关。
