One of the chief branches of Industrial Psychology is Vocational Guidance. This attempts to discover the capacities required for different types of work and to guide young people into occupations for which their endowments fit them. Investigations have been made to determine vocational fitness in a variety of occupations; for instance, in many engineering processes, in printing, in telegraphic and telephonic work, and in clerical occupations. The article which follows gives a practical illustration of some of the methods used in (...) ovcational investigations. (shrink)