This article presents a process for building a State-level performance information system for psychiatric residential treatment facilities for children and youth. Based on a consensus-based program model, researchers identified information needs of stakeholders for measuring clinical outcome measures and for monitoring outcomes after clients are discharged from programs. After reviewing the extant outcome measurement instruments and the array for information needs, researchers recommended a comprehensive package of measures for stakeholders. The article illustrates collaborative efforts made by researchers, State agency, and stakeholders to develop sets of indicators in three areas of performance information: access, process, and client status outcome. (Published Abstract) Figure, table, and references