Summary
"The past dozen years have been important ones in the field of mental testing. In particular there has appeared a complete revision, extension, and doubling of the Stanford-Binet Scale, a large number of personality and aptitude tests and scales have been worked out and put into use, the technique of testing has been further developed and perfected, and much new evidence as to the nature of mental ability itself has been brought forth, especially under the headings of factor analysis and the study of primary abilities. The author in his revision has fully covered these more recent developments and studies and theories, thus making his text again, as it was originally, a comprehensive presentation of the field of mental testing up to the time of issue. The work of hundreds of individual investigators has been organized into a systematic treatise, and the place and work of each have been given their proper setting as parts of a great movement. The volume is accordingly again offered to teachers of college and university classes in the study of mental testing, and to individual students of the field, with confidence that it will prove even more useful as a textbook than did the earlier edition. The general plan of organization of this edition remains the same. The early chapters present an historical account of the development of mental tests; the middle chapters discuss the technique of testing and of the interpretation of the scores; and the concluding chapters discuss the application and interpretation of tests, with a more pronounced effort to cover tests with educational applications"--Book. (PsycINFO Database Record (c) 2006 APA, all rights reserved)