Chapter 3.
Occupational Employment Statistics

Uses and Limitations
Occupational employment data obtained by the OES survey are used to develop information regarding current and projected employment needs and job opportunities. Such information is used in the development of State vocational education plans. These data also enable the analysis of the occupational composition of different industries, of different establishments in the same industry, and changes in industry employment and staffing patterns over time. OES employment estimates also are used as job replacement aids by helping to identify industries that employ the skills gained by enrollees in vocational training programs. OES survey data also serve as the primary ingredients in the development of occupational information systems designed for use by those who are exploring career opportunities or those assisting others in career decision making.

All surveys are subject to response and processing errors. Errors are reduced through reviewing, editing, and screening procedures and, if necessary, through contact with respondents whose data are internally inconsistent or appear to involve misinterpretation of definitions or other instructions. In addition, estimates derived from sample surveys are subject to sampling error. Sampling errors for occupational employment estimates are calculated and published with the estimates.

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