Libraries are under pressure to prove their worth and may not have achieved this fully successfully. There is a resultant growing requirement for value and impact measurement in academic and research libraries. This essay reviews the natural history of library performance measurement and suggests that proof of worth will be measured by the…

Reviews research on impact assessment of libraries and considers potentially useful methodologies for measuring the impact of university libraries, i.e., how library use affects students' academic performance. Topics discussed include categories of library use, purposes of library use, and indicators of library impact. The user panel methodology…

Describes a study that used multiple regression analysis to examine whether the apparent influence of sex discrimination on librarians' salaries would be reduced if other factors were considered. The effects of education, employment level, and publications on librarian salaries are discussed, and three approaches to achieving comparable worth are…