Psychological Examining in the United States Army
By: Robert Mearns Yerkes
Language: en
Categories: History, Science, Social, Health, Fitness, Mental
When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Episodes
033 - VIII Intelligence of the negro
Jan 11, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:38:05032 - V Intelligence ratings by States VI Relation of intelligence ratings to nativity VII Relation of int
Jan 10, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:14:41031 - IV Camp differences in intelligence ratings
Jan 09, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:11:12030 - III Comparison of forms of examination alpha
Jan 08, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:05:41029 - II A general method of statistical interpretation of the principal sample
Jan 07, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:00:33028 - I Sampling of intelligence records and mode of analysis
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:53:53027 - PART III MEASUREMENTS OF INTELLIGENCE IN THE UNITED STATES ARMY Introduction
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:02:45026 - XV Additional Statistics on Examination a
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:21:01025 - XIV Summary of Data Concerning Groups Examined
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:13:59024 - XIII Conditions of Examining and Procedure Adopted During the Initial Experiment
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:12:15023 - XII Performance in Intelligence Examinations as Related to Military Efficiency
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:34:36022 - XI Performance in Intelligence Examinations as Related to Officers Estimates of Intelligence
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:48:37021 - X The Assignment of Letter Ratings
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:14:35020 - IX Effect of Doubling the Time limits in the Alpha and Beta Examinations
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:18:30019 - VIII Revision of Methods of Individual Examination
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:50:15018 - VII Data Obtained Through More Extensive Camp Trial of Examination Beta and Resulting Modifications
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:50:45017 - VI Development of a Substitute Group Test for Illiterates and Foreigners
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:54:20016 - V Methods of segregation
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:35:03015 - IV Revision of Group Examination a
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:51:13014 - III Acceptance of Methods by the War Department and early Modifications Resulting From Official use
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:06:44013 - II Unofficial Trial of Methods
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:33:21012 - PART II METHODS OF EXAMINING HISTORY DEVELOPMENT AND PRELIMINARY RESULTS I Work of the Committee at
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:58:51011 - V Provision of materials for psychological examining Part 1
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:05:16010 - IV General Summary Part 2
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:08:12009 - IV General Summary Part 1
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:02:17008 - III Period of extension of examining Part 5
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:54:10007 - III Period of extension of examining Part 4
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:49:46006 - III Period of extension of examining Part 3
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:02:14005 - III Period of extension of examining Part 2
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:08:20004 - III Period of extension of examining Part 1
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:11:33003 - II Official military trial of psychological examining
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 01:11:52002 - I Introduction to Part 1 Preofficial period of preparation for national Service
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:18:04001 - General Introduction
Jan 06, 2026When the United States entered World War I on April 6, 1917, a pioneering group of experimental psychologists came together to explore the potential of psychological services in the military. As their plans evolved, so too did the scope and responsibilities of their work. This report details the methods and outcomes of psychological examining within the U.S. Army. Divided into three parts, Part I presents the official history of the services development and operations during the war, complete with reproductions of original materials used. Part II offers a thorough overview of the preparation of methods, their distinctive features, and evaluations of...
Duration: 00:06:48