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- Research methods and measures:
- Surveys
- Document types:
- Data and statistics
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1/1/1988 - Data and statistics, Information CircularsA 1986 probability sample survey, mining industry population survey, to measure such employee characteristics as occupation; principal equipment operated; work location at the mine; present job, present company, and total mining experience.
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Content source: National Institute for Occupational Safety and Health, Mining Program