2026-09-23T06:35:11Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/23490 2023-07-10 col_2142_8951 col_2142_5131 com_2142_8950 com_2142_150 com_2142_5130

Lancaster, F.W. Smith, Linda C. Deal, Carl W. Weech, Terry L. Oliveira, Silas Marques de 2011-05-07T14:16:06Z 2011-05-07T14:16:06Z 10000-01-01 1991 Collection evaluation is a necessary process if libraries want to be effective. The citation checking technique is one of many methods utilized to evaluate collections. This study was undertaken in order to (1) determine whether different indicators of strength of a collection will be obtained when different types of materials (i.e., monographs, periodicals, and dissertations) are used as sources of citations to be compared with a collection; and (2) determine the reliability of these sources. Three separate samples of citations were randomly selected from 34 monographs, 17 periodical titles, and 31 dissertations on the field of soil science. Each sample of citations was checked against the University of Illinois library system. The results of the matching process were tabulated by type of material, period of publication, and language. The data revealed that the library owns a higher percentage of the items derived from dissertations (91%), followed by the items derived from periodical titles, (87%), and finally, from the items derived from monographs (77%). The application of the chi-square test for equality of proportions to the actual results revealed that these differences are statistically significant. It was also found that the greater diversity of the references drawn from monographs creates variability in estimates of the coverage of the collection when different samples of citations are drawn. Made available in DSpace on 2011-05-07T14:16:06Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9124466.pdf: 3991650 bytes, checksum: 09759030155b9ead75ccfa311371c48e (MD5) Previous issue date: 1991 Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:04:50Z Item is restricted indefinitely. Restriction data tranferred 2014-07-01T11:31:00-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission ETDs are only available to UIUC Users without author permission U of I Only AAI9124466 (UMI)AAI9124466 http://hdl.handle.net/2142/23490 eng Copyright 1991 Oliveira, Silas Marques de Library Science Information Science Collection evaluation through citation checking: A comparison of three sources text Library and Information Science Library and Information Science University of Illinois at Urbana-Champaign Dissertation Ph.D.