This guidebook provides the basic information needed for inservice training in techniques for observing gifted characteristics in children from diverse population groups including economically disadvantaged and students with limited English proficiency. The training program is based on a specific Staff Development Model (SDM) and a Research-based Assessment Plan (RAP). Among seven assumptions of the SDM and RAP are the necessity of identifying giftedness through the observation of Traits, Aptitudes, and Behaviors (TABs) characteristic of gifted individuals and the importance of having TABs underlie measures used in evaluating students and designing programs and curricula. Part 1 presents a comprehensive overview of the SDM and the RAP, including their history, components, and necessary personnel. Part 2 provides specific implementation instructions ranging from such pre-planning steps as establishing necessary committees to determining a target population, and administering and interpreting the Frasier Talent Assessment Profile. Part 3 offers 16 resource sheets to help in program development, implementation, and evaluation. Part 4 includes master copies for transparencies and handouts. An appendix provides a bibliography of tests, rating scales, products, and process measures. (Contains 20 references.) (DB)