Check-list approach to indexing

An approach to indexing in which the indexer has a check-list to consider during indexing. It may be a checktag as used in MEDLINE or a list of facets to consider as applied in facet analysis (see also discussion by Hjørland, 1988).



"A check tag is defined simply as a concept of a 'tag' which must be considered routinely for every article indexed. The check tags are printed on the data form as both a convenience and reminder. The indexer must examine every article to account for each of the check tag concepts." MEDLARS Indexing Manual, 18.1.






Downs, S. H. & Black, N. (1998). The feasibility of creating a checklist for the assessment of the methodological quality both of randomised and non-randomised studies of health care interventions. Journal of Epidemology and Community Health, 52(6), 377-84.

Funk, M. E. & McGoogan, L. S. (1983). Indexing consistency in MEDLINE. Bulletin of the Medical Library Association, 71(2), 176-183. 
Abstract:  The  quality  of indexing of periodicals in bibliographic data base cannot be measured directly, as there is no one 'correct' way to index an  item.  However,  consistency  can be used to measure the reliability of indexing. To measure consistency in MEDLINE, 760 twice-index articles from 42  periodical  issues were identified in the database, and their indexing compared. Consistency,  expressed  as  a  percentage,  was  measured using Hooper's equation. Overall, checktags had the highest consistency.

Hjørland, B. (1988). Information Retrieval in Psychology. Behavioral and Social Sciences Librarian, 6(3/4), 39‑64. Click for full-text IR in psychol_1988.PDF



See also: Indexing; Indexing theory





Birger Hjørland

Last edited: 19-03-2007