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"This book is intended for use as an elementary and intermediate text. Although it is designed primarily as a basic text for university and college students, it may also prove to be useful for the more advanced students. It contains essentially all the elements of statistics actually used by most graduate students. Because of lack of space, certain technical applications of statistical methods have been omitted, but the methods and principles underlying most of those techniques have been explained. It seemed more advisable to devote space to the teaching of basic principles than to their specialized applications. Throughout the book emphasis has been placed upon interpretation, logical analysis, and the intelligent application of techniques, though not to the neglect of computational skills or the statistical techniques themselves. Besides the development of good technical training, the major objectives in the study of statistics should be the development of a wholesome skepticism, a critical attitude, and a keen quantitative sense in situations involving statistical data. Illustrative examples and problems have been chosen from fields other than education and psychology in order to give the student a wider and more general knowledge of statistical methods and their applications"--Preface. (PsycINFO Database Record (c) 2011 APA, all rights reserved).