Research confirms what common sense dictates: Students learn less when their teachers aren't there. According to multiple studies, a ten-day increase in teacher absence results in at least ten fewer days of learning for students. Clearly, some absences are unavoidable--teachers are only human. But compared to their counterparts in other industries…

This article investigates the association between studying with a contract teacher and a student's academic outcomes, using data from five Francophone African countries for two grade levels and two subjects. Based on this analysis, the evidence for or against this form of teacher hiring is inconclusive. The results indicate that these…

The statistics that are presented are based on a one percent systematic sample of the OCLC online union catalog as of January 1980. Detailed data were collected on the use of fields, subfields, indicators in bibliographic records, and on the co-occurrence of fields within bibliographic records. The sample used for the study was obtained by…

This report describes the multidimensional scaling (MDS) method for interpreting collection overlap based on the number of books held by pairs of libraries in large groups (as many as 100 libraries or more). MDS results for four groups of libraries sampled from the OCLC database are also presented. MDS is described as a class of data-analytic or…

Reports the results of a study performed to determine preferred and effective usage of search keys utilized by OCLC users. The study used the research library facilities of Ohio State University to examine information retrieval behavior for acquisitions and cataloging information. (RAA)

The Western Interstate Commission for Higher Education (WICHE) received a year's grant from the Council on Library Resources to design and develop a library network for 17 western states. During the third quarter, work centered around defining a legal basis, governance structure, role, and appropriate level of program activity for the network.…

This design phase study concerning the proposed replication of the DOBIS system for the British Columbia Library Network (BCLN) was conducted to determine the preferred strategy for the transfer and loading of the British Columbia Union Catalogue (BCUC) database currently resident at the University of Toronto's UTLAS system. User and database…

This report examines the feasibility of developing a Colorado statewide union data base to support cataloging, acquisitions, and interlibrary loan functions. It concludes that any data base developed should focus on providing location information for the state's library materials to support patron access to available resources. The title location…

Described are existing components that could be linked together to form a Western Bibliographic Network or could provide products and services for Network members. The components reviewed are: (1) state library agencies, research libraries, state and multistate library networks, and other regional organizations in the 17-state western region and…

This study explored the feasibility of scanning the OCLC Online Union Catalog (OLUC) to create subject heading validation files. Concluded that automatically generated subject heading files were practical and that such files could be used to verify subject heading strings constructed by catalogers, update subject headings in catalog maintenance,…

This study to determine the hardware and computing facility costs of establishing and operating a British Columbia Library Network (BCLN) for current members of the B. C. Union Catalogue used empirical data regarding their performance of the DOBIS system and estimates of workload, and compared those data with the costs of obtaining current…

Describes a study that investigated the value of various access points in online catalog records by determining their usefulness to searchers who requested location information for items. Results of a transaction log analysis of the Illinois Library Computer Systems Office online union catalog for 45 academic libraries are discussed. (LRW)

Alternative approaches to the building of monographic bibliography files for an on-line data management system using minicomputers at the University of Minnesota Libraries' Twin Cities Campus center are described. Secondary and primary sources of the Machine-Readable Cataloging (MARC) II records are considered--including Blackwell-North America,…

A practical system for producing a union catalog of titles in the collections of the Library of Congress Division for the Blind and Physically Handicapped (DBPH), its regional network, and related agencies from a machine-readable data base is presented. The DBPH organization and operations and the associated regional library network are analyzed.…

Describes the Network Library System, a collaborative development project undertaken by the University of Wisconsin-Madison and University of Chicago libraries, which currently handles an online catalog and a circulation system. The conceptualization of the system, its development and performance, and subsequent changes due to available…