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The experienced authors of this timely book have attempted to describe the general nature and limitation of psychological tests, the differences between good and poor tests, and the fields of application of these tests as adapted to business purposes.
Two sets of forces have operated in the stimulation and formation of psychological tests for business purposes, i.e., that from within psychology initiated by the studies of special abilities of individuals, and that of practical industrial needs. Moreover, notwithstanding the evident lack of perfection in the methods their application in the selection of industrial workers has gained an important and permanent place which in time will advance our understanding of human energies.
The authors, while naturally enthusiastic, particularly emphasize the need of research along the line of definite comparisons of the results obtained by test methods with conditions existing where non-test methods are used. According to their outline success in business research depends upon several important factors including laboratory conditions in business establishments, cooperation of executives and employers, resources in the