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Comput Biomed Res. 1990 Jun;23(3):259-67.

The effects of data entry error: an analysis of partial verification.

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Center for Health Research, Kaiser Foundation Hospitals, Portland, Oregon 97215-1795.


Modern data entry technology has greatly reduced entry errors by building quality control mechanisms such as cross-field and range edits directly into data entry programs. In many application areas the increased accuracy of modern data entry techniques has made 100% verification unnecessary to assure high standards of data quality. Verification of randomly selected forms combined with 100% verification of critical fields provides a cost efficient alternative to 100% verification of all fields. This paper analyzes the effects of data entry error on study findings and provides a basis for designing a partial verification scheme for achieving quality control goals in a cost efficient manner.

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