Table 3.

Participant post-arthroscopy questionnaire (Face Validity).

Face Validity Aspect	Question
Outer appearance	1. To what extent do you think the outer appearance of the knee simulator represents reality?
	2. Is it clear which joint you are operating on?
	3. Is it clear which portals are being used?
Intra-articular joint	4. How realistic is intra-articular anatomy?
	5. How realistic is the texture of the structures?
	6. How realistic is the colour of the structures?
	7. How realistic is the size of the structures?
	8. How realistic is the size of the intra-articular joint space?
	9. How realistic is the arthroscopic image?
Instruments	10. How realistic do the instruments look?
	11. How realistic is the motion of the instruments?
	12. How realistic does the cartilage feel when you are probing (femoral condyle, tibial plateau)?
	13. How realistic do the intra-articular ligaments feel (ACL, PCL)?
	14. How realistic does the meniscus feel?
	15. How realistic is the feedback from the intra-articular structures?