Table 3.

Correct answers on the ChaLKS questionnaire: absolute, relative, and cumulative frequency

	ChaLKS-Medical			ChaLKS-Social&Health
Correct answer	N	Relative frequency	Cumulative frequency	N	Relative frequency	Cumulative frequency
0	3	1.1	1.1	35	56.5	56.5
1	7	2.5	3.5	5	8.1	64.5
2	2	0.7	4.3	1	1.6	66.1
3	13	4.6	8.9	5	8.1	74.2
4	13	4.6	13.5	8	12.9	87.1
5	26	9.2	22.7	0	0	87.1
6	40	14.2	36.9	3	4.8	91.9
7	50	17.7	54.6	3	4.8	96.8
8	45	16	70.6	2	3.2	100
9	38	13.5	84	–	–	–
10	45	16	100	–	–	–

ChaLKS = Chagas Level of Knowledge Scale; ChaLKS-Social&Health = ChaLKS for potential aid workers in social and health fields.