Cascaes da Silva F, Gonçalves E, Valdivia Arancibia BA, Graziele Bento S, da Silva Castro TL, Soleman Hernandez SS, et al. Estimators of internal consistency in health research: the use of the alpha coefficient. Rev Peru Med Exp Salud Publica [Internet]. 2015 Apr. 3 [cited 2024 Nov. 28];32(1):129-38. Available from: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/1585