Uses empirical data from an obtrusive study of reference performance to explore the content validity of and assumptions about unobtrusive studies. Changes needed to improve unobtrusive studies of reference services are discussed, including the development of test questions representing all types of queries and supplementing the correct fill rate…

Summarizes a study of the use of reference service at Sterling Memorial Library, the central research library of Yale University. (PF)

Discussion of the influence of library catalog use studies on cataloging codes and practices focuses on a study of reference staff members at three Association of Research Libraries academic libraries that was conducted to determine their use of bibliographic record elements. Records in online catalogs and bibliographic utilities are examined, and…

Describes an instrument designed to assess the reference outcome in terms of patron report of success in finding what was wanted, rather than overall satisfaction. The results of a library survey which tested the reliability of this instrument and compared it with unobtrusive observation are reported. (Author/CLB)