APPLYING THE RESULTS 47 this standard adapts itself to the varying conditions of supply and demand. On the one hand, it sets a maximum, °r limit beyond which applicants should not be hired for the work in question; that is, as long as the work and working conditions remain the same. At the same time h sets an ideal which guides the employment office in making its choices, enabling it to select from a group of available candidates those most likely to succeed. We are now prepared to take up the second of the two Questions proposed at the outset: How and with what success were the tests given to a large number of appli cants in the employment office? For an experimenter to find certain experimental re sults is one thing, and to turn them over to an employment office for use under practical conditions is quite another. The first step was to find some one who could give the tests with the proper degree of intelligence and under standing, a step particularly important at the outset when the work had not yet been placed upon a firm footing. This need was met in the person of a young woman, a college graduate, who had had some courses in psychology. This young woman was first taken out into the shops and mstructed in the technique of giving tests and allowed to get as much practice as possible. At the same time the directions for giving the tests were carefully standardized and written down so as to insure practical uniformity in giving them at all times. The detailed results of this work are given in the Appendix and in Chapter XIV. Then a room near the employment office was set aside for the purpose of giving tests, and there examinations were con ducted as prescribed, first in small numbers, then in ever- J ucreasing numbers. The results of these selections were of the utmost