to assess / an assessment
When you assess something, you check how good, how big or how important something is. For instance, after a storm or accident, you may need a damage assessment report to study and calculate how much damage was caused. Organizations also do research to assess the quality or effectiveness of their services. Normal assessment methods include comparison and measurement. So, if you want to assess the effectiveness of a salesperson, you might compare them to someone else doing the same job, you could count how much they’ve sold or use a customer survey.
She put forward a research proposal to assess the effectiveness of online training.