Review of research methodologies used in studies of online public access catalog (OPAC) users finds that a variety of research methodologies--e.g., surveys, transaction log analysis, interviews--have been used with varying degrees of expertise. It is concluded that poor research methodology resulting from limited training and resources limits the…

Examines library availability studies for the past 50 years as a measure of library effectiveness and looks at their differing sources of study samples, methods for gathering data, categories of nonavailability, and data analysis. The Kantor branching technique developed in 1976 is described as the standard analysis method. (Author/EM)

Seven articles discuss aspects of transaction log analysis, including introduction and definitions; history and development; components of an ideal logging facility; research methodologies; applications to a variety of library functions; practical and logical limits of the methodology; and future developments needed to enhance successful use of…

Reports findings of a Statistics Task Force investigation at New York University's Bobst Library, which reviewed the collection and publication of statistics and data related to library reference and information services and use of resources, and developed a framework for inclusions, definitions, procedures, and policies for data collection and…