4Evaluator Competencies, based on research conducted by the International Board of Standards for Training, Performance, and Instruction (ibspti]) identifies the competencies needed by those undertaking evaluation efforts in organizational settings. Classified into domains, these evaluator competencies have been rigorously validated, and are accompanied by practical descriptions in the form of performance statements associated with each competency. The authors discuss the challenges and obstacles in conducting such evaluations within dynamic, changing organizations, and provide methods and strategies for putting these competencies to use.