Table 2 The Kirkpatrick levels of evidence to assess intervention efficacy
| Level 1 | Participants react favourably to the learning or intervention. |
| Level 2 | Participants acquired knowledge, skills and attitudes based on the intervention or study. |
| Level 3 | Participants applied what they learnt into practice. |
| Level 4 | Once applied, there was an outcome to that application of skills learnt from the intervention. |