This third in five-lesson tutorial on library evaluation focuses on three measures of reference effectiveness in terms of users' experience: total number of reference questions received, proportion of answers provided to inquiries received, and accuracy with which questions are answered. Four required and suggested readings and four references are…

The first of five lessons in a tutorial on library evaluation from "American Libraries" and the University of Wisconsin/Madison School of Library and Information Studies includes instructions on how to earn a Certificate of Completion. A generalized evaluation model is presented and related to the planning process in libraries. (EJS)