ABSTRACT
AS the aim of the tests was to distinguish extremes of ability and inability rather than to give the whole group of testees accurately graded positions, the simplest form of marking was adopted. In most tests the solution could be divided into a number of items. The number of items correctly given was taken directly as the mark. The students were graded according to their marks and divided into nine approximately equal classes; the top class was called class 1, the bottom class, 9. All comparisons with college work have been made on the basis of these classes. The data that were obtained seem adequate and quite satisfactory for this part of the work. In a later chapter, however, it will be shown that the form of some of the tests, and various difficulties of accurate marking, lower their reliability and make some of the correlation coefficients of questionable value. In further tests that are to be carried out, it is hoped that these difficulties may be overcome.
