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COVERAGE ERRORS

Statistics Directorate    
Definition:
Coverage errors arise from failure to cover adequately all components of the population being studied. Incomplete sampling frames often result in coverage errors.

Context:
Coverage errors are due to divergences between the target population and the frame. Coverage errors include over-coverage, under-coverage and misclassification (Eurostat, Quality Glossary).

Coverage error is the error in an estimate that results from failure to include specified units in the conduct of a survey (undercoverage), and inclusion of some units erroneously either because of a defective frame or because of inclusion of unspecified units or inclusion of specified units more than once in the actual survey (overcoverage). (Statistical Policy Working Paper 15: Quality in Establishment Surveys, Office of Management and Budget, Washington D.C., July 1988, page 44).

Source Publication:
Statistical Office of the United Nations, "Handbook of Household Surveys, Revised Edition", (para. 8.3), Studies in Methods, Series F, No. 31, United Nations, New York, 1984.

Cross References:
Coverage

Statistical Theme: Quality, statistical

Glossary Output Segments:
SDMX

Created on Tuesday, September 25, 2001

Last updated on Thursday, April 18, 2013