Produced by Bryan Ness, Hazel Batey and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) ADENOIDS AND DISEASED TONSILS THEIR EFFECT ON GENERAL INTELLIGENCE BY MARGARET COBB ROGERS, Ph.D. ARCHIVES OF PSYCHOLOGY Edited by R. S. WOODWORTH No. 50 Columbia University Contributions to Philosophy and Psychology NEW YORK April, 1922 AGENTS: G. E. STECHERT & CO.: London: (2 Star Yard Carey St., W. C.); Paris (16, Rue de Conde) CONTENTS Introduction Purpose of the Study. 5 Chapter I. 7 Previous Literature Concerning the Relation of Nose and Throat Defects to Intelligence. Chapter II. 24 Method and Procedure. 1. A Statistical Study. 2. A Study of Improvement After Treatment. Selection of Cases. The Tests. Chapter III. 29 Discussion of the Results. 1. The Statistical Study. 2. The Study of Improvement after Operation. Chapter IV. 53 Measurement of Improvement after a Second Interval of Six Months. Chapter V. 68 Summary. Conclusions. INTRODUCTION--PURPOSE During the last decade or two there has been a growing interest among physicians in defects of the nose and throat. This interest has centered in part upon those two afflictions of childhood--adenoids and diseased tonsils,--or even tonsils that are merely enlarged. There is no doubt of the physical handicap borne by a child who is possessed of them. As a seat of inflammation, a source of infection, a hindrance to proper breathing,--in a multitude of ways they have seemed to deserve the verdict,--"Have them out." Many physicians, to be sure, have cautioned against the wholesale removal of tonsils, saying that tonsils which are large in early childhood very commonly are absorbed at an early age.