Final answer:
The step of the nursing process that includes comparing actual outcomes to the expected outcomes to determine the effectiveness of an intervention is Evaluation.
Step-by-step explanation:
The step of the nursing process that includes comparing actual outcomes to the expected outcomes to determine the effectiveness of an intervention is Evaluation. Evaluation is the final step of the nursing process, where the nurse assesses the effectiveness of the interventions implemented and determines if the goals have been achieved. It involves comparing the actual outcomes observed with the expected outcomes set during the planning phase.