Reports on searching behavior of humanities scholars who were given unlimited, subsidized access to DIALOG databases. How much searching the scholars did, the kinds of techniques and DIALOG features they used, and their learning curves are analyzed. Search features studied included commands, Boolean logic, types of vocabulary, and proximity…

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)

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.…

Reports on research on retrieval behavior of children using a school library online public access catalog. The impact of user characteristics, school setting, interface usability, and information access features on information retrieval are considered. Overall patterns of children's behavior that influence retrieval and findings about strategies…

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)

This report, selected from the results of a larger study of online searching, focuses on the sources of search terms. Terms from users, professional intermediaries, thesauri, and relevance feedback are examined; and the relevance of retrieved items is discussed for each source of search terms as well as for combinations of sources. (12 references)…

Discussion of user persistence in displaying postings from an online catalog focuses on a study at the University of Illinois at Chicago that compared results of an earlier study of user persistence with a recent study of users and their online catalog, LUIS. Results of questionnaires and transaction log analysis are reported. (LRW)

Describes a study that analyzed transaction logs of a search assignment conducted on MEDLINE by medical students at the University of Michigan. The relationship between levels of search experience and search skills, clinical knowledge, search outcome, and subsequent use level are examined. (Contains 21 references.) (LRW)

Describes a study conducted to determine the main differences in online catalog searching styles and results among library staff, faculty, and patrons at Adelphi University (New York). Transaction log analysis, questionnaires, zero hit searches, keyword, author, title, subject, and other search strategies were evaluated to determine patterns of…

This study uses the human approach to examine the sources and effectiveness of search terms selected during 40 mediated interactive database searches and focuses on determining the retrieval effectiveness of search terms identified by users and intermediaries from retrieved items during term relevance feedback. (Author/JKP)

Discusses Dialog's recent new pricing structure and its effects on librarians and other information professionals. Presents charts that compare Dialog databases with other search services (Dow Jones Interactive, LEXIS-NEXIS, OCLC FirstSearch, Ovid, Questel-Orbit, SilverPlatter, and STN) and Dialog via other channels (DataStar, Dialog Select,…

Reports on a study that compared the behavior of two types of users (search specialists and subject matter specialists with no search experience) with two types of online information retrieval interfaces, including DIALOG. Highlights include data recording via transaction logs, structured interviews, and focus group discussions; and hypothesis…

This study evaluated the use of an online catalog by 33 children in the fourth, sixth, and eighth grades. As a basis of comparison, the children's ability to use the card catalog was also evaluated. Touch screen terminals were used to access a CLSI catalog. A specific set of tests was developed to determine if children have the necessary…

Two questionnaires sent to medical librarians and users of the Core Medline/Ebsco CD-ROM disc in the Netherlands gathered data on librarians' attitudes toward the various forms in which Medline is offered--i.e., printed, online, and CD-ROM. Tables and graphs present data on product attributes, availability, use, relevance, subjects searched,…

Describes a study conducted at Illinois State University that compared the results achieved by library users searching the ERIC database on CD-ROM with the results achieved by individual and teamed skilled intermediaries. Evaluation of library services is discussed, patron search strategies are examined, and strategies for improving patron…