This term is prevalent in implementation science. In this context, it means that an assessment is administered as intended. For example, directions are not improvised (e.g., paraphrasing) and scoring criteria are followed without exception or error (e.g., skipping over items). Violations can be prevented through careful study of the technical manual and practice prior to administration. This manual should also be periodically reviewed throughout the screening period and be used as a reference when questions regarding administration occur. If a question emerges that the technical manual cannot offer guidance on, we recommend you contact the author directly.