Effects of Variations in the Order of Subject Headings in Bibliographic Record on Association Between LCSH and LCC

Abstract

Library of Congress Subject Headings (LCSHs) and their corresponding Library of Congress Class Notations (LCCNs) in 101,347 MARC records were analyzed to determine effects of variations in the order of subject headings in bibliographic records on association between subject headings and their corresponding class notations. The analysis revealed that LCSHs listed first had a significantly higher association with their corresponding LCCNs than the succeeding headings. The findings imply that in filing identical subject headings, it would be more logical to subarrange entries by order of subject headings in bibliographic records.