Which of the following is NOT a stage of the ACE Star Model?

• A. Knowledge Discovery
• B. Evidence Summary
• C. Implementation into Practice
• D. Evolution

Answer: (C)

The ACE Star Model moves knowledge from research into real-world practice through five defined stages: Discovery (knowledge creation), Evidence Summary, Translation into Practice, Integration into Practice, and Evaluation. The step that explicitly moves knowledge into actionable guidance is called Translation into Practice. Saying “Implementation into Practice” uses a term that isn’t the model’s official label, so it doesn’t correspond to a named stage in the ACE Star Model. The other terms fit the model’s stages: Knowledge Discovery aligns with Discovery (knowledge creation), and Evidence Summary matches the Evidence Summary stage. Note that Evolution isn’t listed as a stage in the model either; the key point here is matching the exact stage names the model uses, and Translation into Practice is the correct form for the stage that handles putting knowledge into use.