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The author of this monograph utilizes Swedish compulsory military training to analyze psychiatric and social characteristics of a sample of naval conscripts, 995 of whom were personally interviewed and evaluated. From what is a good sample and statistically sound, he attempts to evaluate these factors of personality, background and physical equipment in relation to the character of service performed by the entire group and certain portions of the group having identifying characteristics. The usefulness of being able to predict, in general, future performance of individuals with certain levels of intelligence and other characteristics such as criminal records, broken homes, etc., will be obvious to all who have had to select or disqualify men for military duty.
The group of naval conscripts studied is particularly uniform. All were inducted between the ages of 20 and 22 and at about the same time and place. The men are only "unqualified conscripts from
A Psychiatric and Sociologic Study of a Series of Swedish Naval Conscripts. JAMA. 1948;138(9):719. doi:10.1001/jama.1948.02900090093024