Table 2. Content Validation Index of the instrument developed to assess attitudes about Basic Cardiopulmonary Resuscitation in adolescents, obtained through the evaluation of specialists. Peru, 2021.

Questions	CVI-I
1. I feel capable and prepared to react to an emergency situation.	1
2. I am able to remain calm when faced with a person who has fainted and is NOT breathing.	1
3. I feel capable of making decisions when I am faced with a person who has fainted and is NOT breathing.	1
4. I am able to quickly call an emergency system, for example, the fire department (116), when I find a person who has fainted and is NOT breathing.	1
5. I feel able to report the details to the telephone operator of the emergency system, for example, the fire	1
6. I feel able to open the airway in an unconscious person.	0.92
7. I feel able to perform center chest compressions on an unknown person in cardiac arrest.	1
8. I feel able to perform center chest compressions on a close family member in cardiac arrest.	0.85
9. I feel capable of informing the health professionals of the procedure performed on the person in cardiac arrest. 1	1
10. I feel able to LEARN Cardiopulmonary Resuscitation because with it I can save lives.	1
11. I feel able to PERFORM Cardiopulmonary Resuscitation because with it I can save lives.	1

CVI-I Content Validation index applied to questions