I. Introduction
After the medical ethics was introduced in the 1980s, the knowledge of medical ethics has been regarded as an essential competence of physicians. The inquiry of medical ethics in the Korean Medical Licensing Examination(KMLE) appeared in 2013, but the only one question was presented in the general part of medical knowledge. Korea Health Personnel Licensing Examination Institute (KHPLEI) proposed the assessment object of written test in 2014 [1] and the assessment object of clinical skill test in 2015 [2]. Even if each written test item ad clinical skill were composed of rationale, assessment object and concrete outcome, the ethical portion was not classified and included sporadically. According to the Kwon’s Report 2015 about the medical ethics education and health personnel national licensing examination, including medical ethics in the national licensing examination and standardization of contents were presented as a solution to improve the medical ethics education in medical schools and nursing colleges [3]. The relative portion of medical ethics in KMLE was hard to compare with other countries. For example, in United States Medical Licensing Examination (USMLE), medical ethics was included in social sciences which took 15~20% portion of total questionnaires of step 1 [3]. To clarify the core capabilities of medical ethics was the purpose of this study. Through the Delphi technique with the expert survey, we hope to delineate the core capabilities of medical ethics and its inclusion to KMLE.
II. Methods
Relevant domestic and international materials were collected, compared and reviewed to configure the domains and details of these capabilities. The domestic materials were the books Textbook of Medical Ethics published by the Korean Society for Medical Ethics [4], The KMA Principles and Guidelines for Physician’s Professional Ethics published by the Korean Medical Association [5], Clinical Ethics published by Seoul National University [6] and Human and Society-Centered Learning Outcomes in Basic Medical Education by the Korean Association of Medical Colleges (2017) [7]. The reference materials published in foreign countries were the Decamp (1995) [8] and Romanell reports (2015) [9], both published in the U.S., Good Medical Practice (2013), published by the General Medical Council of the U.K. [10] and The JMA Guidelines for Physician’s Professional Ethics (3rd edition) published by the Japan Medical Association [11].
The collected materials were used to configure items for a Delphi survey. The questionnaire included indices of core capabilities, which were grouped into three categories as patient-doctor relationship, relationship between medical care and society and individual field of expertise. These categories were divided into three levels: sub-category, component and definition of index. The question was the suitability of the individual indices as a core ethical capability of KMLE. That suitability was evaluated on a 4-point Likert scale. In addition, open-ended questions were added to the questionnaire to collect expert opinions about the validity of the individual indices and to supplement the index. We chose the respondents from the member of the Korean Society of Medical Ethics and Korean Society of Medical Education. Respondents were in the position of medical school professors or the specialists of clinical faculty with the career of medical ethics education for four years or longer. The Delphi survey was conducted. The first questionnaire for the first Delphi survey was prepared on the basis of above mentioned literature and was designed to include 3 category domains, 18 sub-categories, 35 components. The survey was conducted twice via online Google Forms.
Validity of items were calculated based on the central validity ratio (CVR). According to Lawshe’s suggestion, CVR values of individual competence were calculated to verify the validity of the results as a core competence of medical ethics.
ne: Number of panelist indicating “essential”
N: Total number of panelists
The first round survey was done from March 21, 2019 to April 5, 2019. The questionnaire was composed of 93 indices of definitions and sent to 36 willing participants, of whom 23 responded (response rate: 63.8%). The 2 indices of definitions were regarded as overlapped questions and finally the number of indices became 91.
The second survey with 76 items was conducted from May 1, 2019 to May 9, 2019 to 23 respondents from the primary survey, of whom 16 responded (response rate: 69.6%).
III. Results
The minimum of CVR is determined according to the number of respondents. In the first Delphi survey, the 23 respondents determined the CVR of 0.39 or higher were to show content validity. The data collected from the Delphi surveys were analyzed by using the Excel software program (ver. 15.34). Among the 91 indices, the 20 indices showed CVR values lower than 0.39 and the 71 indices showed CVR values 0.39 or higher.
The second Delphi, the 16 respondents determined the CVR of 0.49 or higher were to show content validity. The questionnaire was prepared 76 index definitions. Along with the 71 items of first survey survivors, 5 items were added. The 3 were revised indices (1.5.1.1., 1.5.2.1., 3.5.2.1.) failed at the first Delphi and the 2 were new indices (2.5.2.1., 2.5.2.2.) had been missed at the first survey. The 62 indices survey items having sufficient content validity (Table 1) and 14 indices failed.
To summarize the research result, through the first and second round Delphi survey, we surveyed the 93 items about medical ethics and the 62 indices showed the content validity and 31 indices failed to show the content validity (Table 2).
IV. Discussion & conclusion
The coverage of context of each reference was different (Table 3.) So we had to prepare the questionnaire comprehensive way. So the respondents tend to narrow down the scope of KMLE suitability of the individual index compared with the questionnaire. The reasons were as follow; The first, some items considered to be peripheral, too detailed, or too specialized for medical college students. Ethics related to animal experimentation (component 3.7.1.), the definitions of “I can explain the 3R principles for designing an animal experiment (3.7.1.1.)” and “I can explain the functions and roles of the Institutional Animal Care and Use Committee (3.7.1.2.)” failed to show the content validity. Ethics related to the protection of organ donors (component 3.2.1.), the definitions of “I can protect a potential organ donor so that he or she may make relevant decisions freely (3.2.1.1.)” and “I can understand the ethical issues related to organ donation by minors (3.2.1.2.)” failed to show content validity. The comments on these items had in common as these are peripheral, too detailed, or too specialized for medical college students.
The second, the some items considered to be covered simultaneously by the other medical parts, mainly health and medical jurisprudence and preventive medicine. Ethics related to mass media and advertising (component 2.4.3.), “I can explain the scope of advertisement permitted by laws and regulations (2.4.3.1)”, “I can understand and explain the ethical issues related to the use of mass media (2.4.3.2)”, “I can explain the prohibition of participating for profit in the mass media, including broadcasting, and of using the mass media as a means of advertisement (2.4.3.3.)” and “I can understand the principle of media usage and explain the detailed guideline for physician mass media broad casting. (2.4.3.4.)” were fail to show content validity. The comments on these items had in common as these were regulated by detailed provisions in the Medical service act.
The third, the respondents’ degree of understanding would affect the positivity of answers. If there was a lack of explanation, the answers were shifted to the negative side. After we added the explanation, the respondents then answered positively at the second Delphi. “I can explain the concept of professional boundaries (1.5.2.1.)” had failed to show content validity at the first Delphi survey (CVR, 0.043). We added the explanation and revised to “I can explain the concept of professional boundaries(Professional boundaries are boundaries that must not be transgressed in order to maintain a therapeutic relationship made between a doctor and a patient. Professional boundaries are also the limit of the conduct or attitude that must be kept by a doctor and patient in order to maintain a therapeutic relationship),” it showed content validity (CVR, 0.875). “I can appropriately respond to a patient’s (family or guardian) refusal of or demand for a test or treatment against medical knowledge (1.5.1.1.)” had failed to show content validity (CVR, 0.304). We changed the phrase “medical knowledge” to “professional decision made by a medical worker” and revised to “I can appropriately cope with cases where a patient or a caregiver demands or refuses a test or treatment against a professional decision made by a medical worker.”, than CVR was changed to 0.5.
This research was aimed to set the boundaries of the medical ethics for the KMLE and conducted to identify required ethical competencies for medical doctors in a clinical setting by collecting experts’ opinions. The results showed 3 categories, 17 sub-categories, 30 components, and 62 index definitions and which were identified as required core competencies. The results of this study may help in adjusting the details and scope of inclusion of medical ethics items to KMLE. Despite of these results, the scope of competences could be extend. If the new contexts added to the medical school curriculum, the corresponding ethical competencies should be constructed. The developments of detailed contexts and specifying the assessment methods of established definitions would be the next task to perform.