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. 2018 Sep 18;18:215. doi: 10.1186/s12909-018-1325-9

Table 4.

Items of knowledge scale

Items Mean (S.D.) Corrected item-total correlation
1. Which of the following is most likely to decrease the risk of medical errors?
 a. Accept them as an inevitable outcome of patient care and focus very hard on avoiding them 0.71 (0.46) 0.12
b. Examine how the system is setting providers up to make errors and try to fix it
 c. Make it clear to providers that errors will not be tolerated, and discipline providers who make errors leading to patient harm
 d. Since trainees are responsible for most errors, increase the length of training to ensure everyone is competent
2. Which of the following is true regarding medical errors?
 a. If no lasting harm is done to the patient, it’s not really an error and doesn’t need to be addressed 0.94 (0.23) 0.14
 b. Patients are unable to tell when an error occurs, so their opinion should be ignored
c. An error that doesn’t result in any harm is an opportunity to find a hole in the system and prevent future harm
 d. After an error occurs, the hospital should avoid telling anyone, and solve it on their own without involving the patient
 e. Ever since the IOM report “To Err is Human”, the number of medical errors has decreased and it’s no longer a problem
3. A student incorrectly records a patient’s drug allergies, this is classified as what type of medical error?
a. Slip 0.24 (0.43) 0.28
 b. Lapse
 c. Mistake
 d. Violation
4. A physician forgets to order a patient’s medications, this is classified as what type of medical error?
 a. Slip 0.64 (0.48) 0.34
b. Lapse
 c. Mistake
 d. Violation
5. A physician misreads a radiograph resulting in a misdiagnosis, this is classified as what type of medical error?
 a. Slip 0.77 (0.42) 0.20
 b. Lapse
c. Mistake
 d. Violation
6. A surgeon rushes the surgical team to start surgery, ignoring the charge nurse’s wishes to perform a timeout, this is classified as what type of medical error?
 a. Slip 0.88 (0.33) 0.36
 b. Lapse
 c. Mistake
d. Violation
7. Which individuals are likely affected by a surgical error?
 a. The patient and his family 0.94 (0.24) 0.25
 b. The physician in charge of the surgery
 c. The second year resident assisting the physician
 d. The nurse on the team
e. All of the above
8. Effective systems focused on ensuring safety and preventing errors require:
 a. Collaboration among physicians 0.97 (0.17) 0.33
 b. Collaboration among nurses
 c. Collaboration among patients and families
d. Collaboration of the interprofessional team with the patient and family
9. What is the point of a protocol?
 a. To standardize the delivery of care and help providers perform optimally 0.87 (0.34) 0.19
 b. To standardize the delivery of care and protect providers from lawsuit if an error occurs
 c. To standardize the delivery of care so that patients know what to expect when they go to the doctor
 d. To standardize the delivery of care and prevent providers from developing their own techniques
10. Most patient harm is the result of:
 a. A bad decision from one individual on the team 0.76 (0.43) 0.17
 b. The bad performance of a physician
c. A series of system errors
 d. Lack of time
 e. The complexity of the procedure
Knowledge scale score, mean (SD), Cronbach’s alpha (score range: 1–10) 7.53 (1.83) 0.62

Bold, Italic, and underline items are correct answers