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Excerpt from Archives of Psychology That each individual fluctuates in ability from moment to moment is as obvious an observation as that individuals differ from each other. His tendency to vary from his own level of perform ance is as characteristic of each person as is the level from which he varies. A person becomes successively stronger and weaker, more and less intelligent, better and worse. In short, his powers wax and wane as the complex influences playing upon him from within and without change in number, intensity, and direction. 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.

Excerpt from Archives of Psychology, Vol. 7 The present study has undertaken to investigate to what extent the average individual is able to identify notes, and to what degree his initial ability may be improved by training. By an analysis of the introspective reports given at these tests and a comparison of these reports with the objective results, it is possible that some light may be thrown on the general problem of judgments of absolute tone. Historical Survey A review of the literature on this prob lem brings out many casual observations of the ability, many speculations as to its nature and its relation to other abilities and to practice effects, and also a number of systematic studies in this field. Stumpf1 writes as early as 1883 that he believes the indi vidual differences in memory for pitch to be due to such varia ble factors as practice effects, general retentiveness and a cer tain inexplainable individual coefficient. 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.