Reports on output measures that can give children's librarians additional information to better control collections and make better selection and weeding decisions. Statistical comparisons utilizing circulation data (comparing circulation year to year, circulation to patrons served, circulation to number of materials owned) and availability of…

Argues that a mix of quantitative and qualitative measures is most efficacious in library collection analysis. Cases drawn from the literature in which a combination of these measures was profitably applied are considered, and the types of software packages for purposes of data manipulation are discussed. (Contains 15 references.) (KRN)

Discusses the use of quantitative collection development and use studies as research tools to evaluate the quality of children's library collections. Four studies, conducted in school and public libraries, that involve analyzing data with statistical tests are reviewed to show how data already being collected can be developed into research…