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Science and librarianship; Methods of research; Descriptive statistics; Inferential statistics; Aids to research.

Bibliografia : p. 164-190.

Bibliografia : p. 164-190.

Science and librarianship; Methods of research; Descriptive statistics; Inferential statistics; Aids to research.

Providing detailed discussions of measurement from a variety of viewpoints and a wide range of applications, this practical text examines how measurement is defined and used in information science, including documents/text/records, searching, output services, and data collection. The book is an excellent secondary or recommended text for courses in research methods, information retrieval, database management, and systems design. * * Covers the quantitative and qualitative aspects of measurement * Examines mathematical and statistical concepts * Explores measurements of databases and information retrieval

Evaluation, which is a critical component of the planning process, assesses the effectiveness and efficiency of library programs and services in the context of stated goals and objectives. This book views evaluation as a type of research study in which evaluators collect either research or management data. Chapters discuss steps of the evaluation process and provide practical examples of the application of these steps to specific library problems. The overall objectives of the volume are to introduce readers to the relationship between planning and evaluation; to discuss the components of an evaluation study in clear prose so that readers can easily understand the different steps; to foster an attitude that recognizes the importance of evaluation for the development of library programs and services; to offer examples of each component of the evaluation process; to identify writings on evaluation in libraries and information centers; and to encourage organizational change and underscore the importance of evaluation to library decision making.

Aims to make accessible the process of information retrieval of texts or abstracts. Although a knowledge of a higher order language (PASCAL, C, or BASIC) and elementary algebra is useful, the general meaning can be suitably appreciated with only slight knowledge of information technology.