"A questionnaire was developed consisting of 20 multiple-choice and open-ended questions,
divided into two sections" (Alsulami et al., 2014, p. 22). "This study aimed to evaluate nurses'
knowledge, perceptions and opinions of double-checking for medicines administration in one
hospital" (Alsulami et al,, 2014, p. 22). "Three studies have focused on the double-checking
policies of medication administration in children's hospitals, and all of them showed that the
double-checking process needed more clarification and explanation for nurses in practice"
(Alsulami et al., 2014, p. 22).