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Excerpt from Experimental Tests of Mathematical, Ability and Their Prognostic Value In no sphere is this knowledge more desirable and necessary at the present time than in the high school subjects and particularly in mathematics. Reforms of a far-reaching character are already planned or in process and it is important that such psychological considerations as bear upon a satisfactory scheme should be ascertained. In our present comparative ignorance Of the abili ties involved in mathematical work, we lack one important means of estimating the significance of the reconstructions proposed in this field. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.