Pilot study and reliability
COMPLICATIONS
To test the clarity and applicability of the research tools, a pilot study including six patients, or 10% of the sample, was conducted. Modifications were made as necessary, such as "complications of previous angiography," which were omitted from tool I because patients could not answer this question and were not included in the patient's medical records. The clarity of other tools was ensured, especially after translation into Arabic. They were not included in the study's actual sample of participants. The study tools' internal consistency was assessed using Cronbach's alpha test. Tool II (= 0.824), Tool III (= 0.788), and Tool IV (= 0.868) were reliable.