It is from this body of pupils that most of the wage-earners are recruited. In the course of the survey several investigations were made for the purpose of finding out what educational preparation workers in various industries had received. One of the most extensive of these was conducted in connection with the study of the printing industry. Educationally the printing trades rank higher than most other factory occupations, yet the average journeyman printer possesses less than a complete elementary education. Composing-room employees, such as compositors, linotypers, stonemen, proof-readers, etc., undoubtedly stand at the head of the skilled trades as to educational training, but it was found that only eight per cent were high school graduates. Six per cent had left school before reaching the seventh grade, and 16 per cent before reaching the eighth grade. The other departments of the printing industry made a much less favorable showing.
An investigation conducted by the Survey in the spring of 1915, covering 5,000 young people at work under 21 years of age, indicated that only about 13 per cent of these young workers had received any high school training and that less than four per cent had completed a high school course. Over one-fifth reported the sixth grade as the last completed before leaving school, and nearly half had dropped out before completing the elementary course. Less than seven per cent of the boys engaged in industrial pursuits had received any high school training and only 42 per cent had got beyond the seventh grade. The educational preparation of the boys engaged in commercial and clerical occupations was somewhat better, nearly 22 per cent having attended high school one year or more; about one-half had left school after completing the eighth grade and nearly one-third had not completed the elementary course.
These facts have a vital relation to the problem of vocational training. If the great majority of the children who will later enter wage-earning occupations do not remain in school beyond the end of the compulsory attendance period, and in addition over half fail to complete even the elementary course, vocational training, to reach them at all, must begin not later than the seventh grade, and if possible, before the pupils reach the age of 14.