Discusses program evaluation concepts and methods and how they can be applied to children's library services. What program evaluation is not is explained, as well as three levels of evaluation, including a variety of "threats" to the possible effectiveness of a program. Examples of program evaluation instruments are appended. (EM)

This study applied an analytical technique called Data Envelopment Analysis (DEA) to calculate the relative technical efficiency of 95 academic research libraries, all members of the Association of Research Libraries. DEA, with the proper model of library inputs and outputs, can reveal best practices in the peer groups, as well as the technical…