vey purposes a more effective measuring tool than similar tests in America. Instead of hundreds of tests, each with its own grade norms or no norms at all, China has a few tests all scaled alike, fairly well standardized, covering the field with little overlapping. The tests are scaled according to the T technique, which interprets the ability of each pupil in terms of the average performance of twelve-year-old children. It is, therefore, possible to compare the various subjects with each other and to discover the strong and weak points of a class and of the individual student. There are age scores, which on each test give the comparison of each child's ability with the average of his age; there are classification scores, which show whether the child is properly classified according to the standards of the N. A. A. E.; and, most important of all, the effort score, which, by the comparison of and intelligence tests, shows whether each student has educational achievement worthy of his mental capacity. Two years ago an educational survey was made by the N. A. A. E., when 104,000 children of thirty-three cities were tested. The tests used were a non-verbal intelligence test, devised by Professor Terman, and the education test, comprising fundamentals in all subjects taught in grades three through eight, devised by Professor Cha. As a result of that survey, it is possible to compare the intelligence and the educational achievement of any school or class with the corresponding averages of all China. The data on which the present paper is based are from tests given this year in grades four through seven in nine schools of the Southern Methodist Mission. The schools are, in general, of two typesnamely, those in connection with boarding schools of higher grade, where it is possible for the primary school to receive adequate supervision, and those known as out-station day schools. Schools of the latter type are the more numerous, but the former have the larger classes; so that in number of students the two types balance each