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MENTAL DEFICIENCY

MENTAL DEFICIENCY Mental deficiency is a cerebral tergimutation, and the afflicted exhibit, as a result, defective intelligence, retarded learning power and varying degrees of social maladjustment due either to unfavorable environment or to unfavorable personality traits or to both. Defective intelligence always carries with it retarded learning power and is therefore so important as to be considered fundamental and, whether regarded as mental age or as intelligence quotient, is the basis of classification and the guide to social adjustments. Mentally defective persons are classified as idiots (mental age, 0 to 3 years; intelligence quotient, 0 to 25), imbeciles (mental age, 3 to 7 years; intelligence quotient, 26 to 50), or morons (mental age, 7 to 12 years; intelligence quotient, 51 to 70 or 75). When the intelligence defect is sufficiently great, as in idiots and imbeciles, social adjustment is not possible, and the conduct of these persons will never be acceptable to http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png American journal of diseases of children American Medical Association

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Publisher
American Medical Association
Copyright
Copyright © 1935 American Medical Association. All Rights Reserved. Applicable FARS/DFARS Restrictions Apply to Government Use.
ISSN
0096-8994
eISSN
1538-3628
DOI
10.1001/archpedi.1935.01970060211017
Publisher site
See Article on Publisher Site

Abstract

Mental deficiency is a cerebral tergimutation, and the afflicted exhibit, as a result, defective intelligence, retarded learning power and varying degrees of social maladjustment due either to unfavorable environment or to unfavorable personality traits or to both. Defective intelligence always carries with it retarded learning power and is therefore so important as to be considered fundamental and, whether regarded as mental age or as intelligence quotient, is the basis of classification and the guide to social adjustments. Mentally defective persons are classified as idiots (mental age, 0 to 3 years; intelligence quotient, 0 to 25), imbeciles (mental age, 3 to 7 years; intelligence quotient, 26 to 50), or morons (mental age, 7 to 12 years; intelligence quotient, 51 to 70 or 75). When the intelligence defect is sufficiently great, as in idiots and imbeciles, social adjustment is not possible, and the conduct of these persons will never be acceptable to

Journal

American journal of diseases of childrenAmerican Medical Association

Published: Jun 1, 1935

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