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…

An auxiliary study of the direct observation method for counting periodical usage in Evans Library at Texas A&M University found that student observations contain substantial error and that aggregation problems and cost issues are fundamental constraints to this method. Concludes direct observation may be useful in calibrating the results of…

Describes a study that used a nonobtrusive methodology to determine the effectiveness of an information desk staffed by graduate students and nonprofessionals in an academic library. Relationships that were found between the level of staff members and the quality of reference services are described, and the implications for staffing patterns and…

Describes a study conducted at the Brigham Young University Library that examined the quality of reference service provided by students and department assistants, the adequacy of the training program, and the effectiveness of the system of referring patrons to subject specialist librarians. Recommendations for improving training programs 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)