Accession Number : AD0288087

Title :   INDEXER CONSISTENCY UNDER MINIMAL CONDITIONS

Corporate Author : DOCUMENTATION INC BETHESDA MD

Personal Author(s) : JACOBY,J. ; SLAMECKA,V.

Report Date : NOV 1962

Pagination or Media Count : 1

Abstract : In a project of improving the quality of library indexing, a measure of the consistency with which indexers tend to choose the same terms as being descriptive of the same documents was assessed. Under artificial indexing conditions which excluded the use of indexing tools, communication, and post-indexing editing, six indexers (three experienced, three beginners) using a Uniterm system of coordinate indexing were found to differ significantly in the number of terms used to index a group of 75 randomly selected chemical patents, as well as in the percent of matched terms any one indexer had with any other. The experienced indexers have attained a significantly higher degree of inter-indexer consistency, with less internal variation, than their inexperienced colleagues. Results of the intraindexer reliability experiment show that, on the whole, each indexer tends to be consistent with himself when re-indexing ''equated'' documents and using a vocabulary of ''general'' (shared) terms. (Author)

Descriptors :   *CLASSIFICATION, *CODING, ANALYSIS, ANALYSIS OF VARIANCE, DOCUMENTS, INDEXES, RELIABILITY, SELECTION, VOCABULARY

Distribution Statement : APPROVED FOR PUBLIC RELEASE