Examines usage patterns of ELHILL retrieval program of National Library of Medicine's MEDLARS system. Based on sample of 6,759 searches, the study analyzes frequency of various commands, classifies messages issued by system, and investigates searcher error rates. Suggestions for redesigning program and query language are noted. Seven references…

Indexing and abstraction services in the social sciences are growing as primary sources. Results are that users become overwhelmed with the number of secondary services they use. Therefore, planning, coverage and overlap are examined in this research report with emphasis on reexamining secondary services and redefining users and users' needs.…

This third article in a series describes a study that investigated database selection behavior of end-users of the EasyNet Scan feature in the areas of social sciences and arts and humanities. Databases are ranked in order of user selection, and variables that influence file selection are briefly discussed. (Three references) (LRW)

The first article describes SPORT, a database providing international coverage of athletics and physical education, and compares it to other online services in terms of coverage, thesauri, possible search strategies, and actual usage. The second article reviews available online information on sports medicine. (CLB)

This study, conducted at a separate serial card catalog in a major research library, measures the success of more than 400 patrons in the retrieval of serials. Patron interviews supplement data analysis to determine approaches, success rate, and underlying reasons for success or failure. An appendix includes the survey questionnaire. (Author/RAA)

Describes an inductive, qualitative study of 30 Syracuse University students that investigated the situated nature of action during interactions with an online public access catalog. Highlights include elements of situatedness, with examples; the mapping of individual searches; and users' goals and stopping behavior. (Author/LRW)

Findings of study of online searchers' self-supported behaviors and attitudes indicate that: there are wide individual differences among online searchers in attitudes and behaviors; searchers from academic institutions differ from counterparts in other library settings; experience appears to be positively related to flexible, trial-and-error…

Describes a study at the University of North Carolina at Chapel Hill that analyzed the transaction logs of medical students' searches of a factual database to determine the overall frequency of search moves, the interaction between the problem statement and students' search strategies, the search moves selected, and the tactics used by students.…

This last article in a four-part series describes database selection behavior of end-users of the EasyNet Scan feature in the categories of people, news, and general reference. Databases are ranked in descending order of selection, the value of multifile search strategies is confirmed, and plans for further investigations are presented. (LRW)

Describes a study that used the shelf availability research methodology to identify and quantify the causes of users' failures to identify and locate library materials. The factors resulting in unsuccessful searches are discussed, and recommendations for reducing these factors are made. (26 references) (CLB)

A multifaceted card catalog use study was conducted at University of Illinois Music Library to determine hourly rate of use at sound recording and book/music catalogs; time spent at catalogs; who uses catalogs and why; difficulties users encounter; success rate of users' searches; recommendations for designing online catalog. (16 references)…

Discusses library use studies that examined library catalog search failures and demonstrates types of online catalog access that can reduce the failures caused by card catalog flaws or by user search errors by half. The use of single keyword, implied Boolean, or derived truncated key retrieval is suggested. (14 references) (LRW)

Describes a study that compared performance differences (perceived, actual, and temporal) for a strategic business information acquisition experimental task when subjects used a library versus using the Internet. It was found that task performance decreased and time to completion increased when using the Internet. (Author/LRW)

With grants from the Council on Library Resources (CLR) and the Association of Research Libraries (ARL), New York University (NYU) Libraries conducted a study to assess user reactions to their online catalog, Bobcat (Bobst Library Computerized Catalog). In order to evaluate the effectiveness of NYU's catalog, to describe users' attitudes toward…

A survey of 430 users of online catalog at Ohio State University Libraries found that most users are undergraduate students (68 percent) and that majority (95 percent) choose online catalog as first source of information. Fewer performed known-item searches and success rates were generally higher than reported in earlier studies. (8 references)…