Developing a best practice framework for clinical competency education in the traditional East-Asian medicine curriculum.

BACKGROUND: While clinical competency is crucial for traditional East-Asian medical education, available studies on the educational system for fostering clinical performance are scarce. This study aimed to review the educational system, curriculum, facilities, and management of current traditional East-Asian medicine in a well-established university of Korea and develop a Best Practice Framework (BPF) of clinical competency education. METHODS: The clinical competency education system in Pusan National University School of Korean Medicine was systematically described through 5 steps of governance of the educational system, competency of the graduates, educational resources, assessment strategies and tools, and gaps in the curriculum. We also reviewed the experiences in education and the points to be improved. RESULTS: The Office of Traditional Korean Medicine Education governs the development, implementation, and evaluation of the educational curriculum for cultivating students' clinical competency. Medical students have undertaken 39 modules of clinical biomedicine and 21 of traditional medicine during the clinical clerkship courses in an affiliated hospital, Clinical Skill Practice Center, clinical research center, practice lab for medical herb, and other locations. After training, 15 modules of simulated clinical training using standardized patients, students' clinical competency are evaluated by a Clinical Performance Test using a Clinical Performance Examination (CPX) and an Objective Structured Clinical Examination (OSCE) for biomedical and traditional medical skills. CONCLUSIONS: A clinical competency framework is required for a qualified physician of traditional East-Asian medicine. This study reviewed the current well-organized educational system of Korean traditional medicine in detail, which can be used for the BPF of competency-based clinical education. We expect the current study to be a representative reference for establishing an educational system of traditional medicine such as acupuncture and medical herbs in other countries.

How do medical students actually think while solving problems in three different types of clinical assessments in Korea: Clinical performance examination (CPX), multimedia case-based assessment (CBA), and modified essay question (MEQ).

PURPOSE: This study aimed to explore students' cognitive patterns while solving clinical problems in three different types of assessments - clinical performance examination (CPX), multimedia case-based assessment (CBA), and modified essay question (MEQ) - and thus, to understand how different types of assessments can afford different thinking. METHODS: A total of six test-performance cases from two fourth-year medical students were used for a cross-case study. Data were collected through one-on-one interviews using a stimulated recall protocol where students were: 1) shown videos of themselves taking each assessment and 2) asked to elaborate on what they were thinking. The unit of analysis was the smallest phrases or sentences, from the participants' narratives, representing a meaningful cognitive occurrence. The narrative data were reorganized chronologically and then analyzed according to a frame of hypothetico-deductive reasoning as clinical reasoning. RESULTS: Both participants demonstrated similar patterns in their proportional frequencies of clinical reasoning on the same clinical assessment. The results also revealed that the three different assessment types may afford different aspects of clinical reasoning. For example, the CPX highly promoted the participants' reasoning related to inquiry strategy, while the MEQ highly promoted hypothesis generation. Similarly, the participants' data analysis and synthesis were more afforded by the CBA than the other types. CONCLUSION: This study discovered that different assessment design affords different thinking in problem-solving. This finding can contribute to leveraging ways of improving current clinical assessments. Importantly, the research method used in this study can be utilized as an alternative way of examining the validity of clinical assessments.

The Effectiveness of Direct Feedback of Faculty and Standardized Patient after Medical Students’ Clinical Performance Examination / 의료커뮤니케이션

BACKGROUND: Clear and proper feedback is necessary to decrease the gap between knowledge and practice. Feedback can improve clinical competence of medical students up to expertise level.METHODS: A total of 180 4th-year students of Daegu-Kyungbuk consortium area participated in the scheduled feedback program of clinical performance examination on August 26th in 2017. Among them, 167 students filled out the questionnaire on helpfulness of the direct observation and feedback of faculty and standardized patient (SP), helpfulness for history taking (Hx), physical examination (PE), and patient-physician interaction (PPI), and any change of clinical competence and clinical reasoning of the students preand post-feedback. All the responses were measured on 5-point Likert scale.RESULTS: Among the total students, 88.6% responded that direct feedback at the practice is helpful, particularly 95.2% of faculty and 76.6% of SP. A 37.3% answered that it was helpful for all the categories of feedback, but only 25.3% for PE and 24.7% for Hx. A 56.3% responded that feedback is helpful for both disease questions and counseling practice. Mean score of self-assessment by the students increased from 2.52 to 3.36 for Hx, 2.30 to 3.24 for PE, 2.46 to 3.33 for clinical reasoning, 2.84 to 3.59 for PPI, and 2.44 to 3.28 for overall competence. And all these differences were found to be statistically significant (P <0.001)CONCLUSION: A majority of students responded that the direct feedback from faculty and SP was helpful at the clinical practice of Hx, PE, and PPI, and increased the level of clinical competence.

Responses of Medical Students to Using Smartphone Video at Clinical Performance Examination / 의료커뮤니케이션

BACKGROUND: There are practical difficulties to show exact clinical symptoms such as seizure to medical students at Clinical Performance Examination (CPX). We developed a new CPX case of child's seizure on video using smartphone.METHODS: A total of 356 4th-year students of five universities in Daegue-Gyeongbuk and Gyeongnam area took the clinical skill examination from June 13th to 17th in 2016. Among them, 72 students took the new CPX case in June 15th and 71 students filled out the questionnaire on whether the new CPX with smartphone video is helpful, authentic, difficult, and necessary for other CPX. All the questions were measured on 5-Likert scale.RESULTS: Mean score of the new CPX was 57.1, lower than the mean scores of the other 11 CPX cases, 62.8. For the question “Smartphone videos helped to solve the problem”, 45 students (63.4%) answered ‘Very much’. For the question “Is it realistic compared to other questions?” 30 students (42.3%) and 25 students (35.2%) answered ‘Very much’ and ‘Much’. For the question “Is it difficult compared with other questions?” 18 students (25.4%) and 26 students (36.6%) answered ‘Very much’ and ‘Much’. As for the question “I would like to have more tests using smartphone video”, 26 students (36.6%) answered ‘So and so’.CONCLUSION: A majority of students responded that video presentation was helpful and authentic to figure out the CPX, whereas they assessed smartphone video was more difficult compared with other CPXs. Further, students were negative toward using smartphone video for the other CPXs.

Perception survey on the introduction of clinical performance examination as part of the national nursing licensing examination in Korea.

PURPOSE: The purpose of this study was to analyze opinions about the action plan for implementation of clinical performance exam as part of the national nursing licensing examination and presents the expected effects of the performance exam and aspects to consider regarding its implementation. METHODS: This study used a mixed-methods design. Quantitative data were collected by a questionnaire survey, while qualitative data were collected by focus group interviews with experts. The survey targeted 200 nursing professors and clinical nurses with more than 5 years of work experience, and the focus group interviews were conducted with 28 of professors, clinical instructors, and nurses at hospitals. RESULTS: First, nursing professors and clinical specialists agreed that the current written tests have limitations in evaluating examinees' ability, and that the introduction of a clinical performance exam will yield positive results. Clinical performance exam is necessary to evaluate and improve nurses' work ability, which means that the implementation of a performance exam is advisable if its credibility and validity can be verified. Second, most respondents chose direct performance exams using simulators or standardized patients as the most suitable format of the test. CONCLUSION: In conclusion, the current national nursing licensing exam is somewhat limited in its ability to identify competent nurses. Thus, the time has come for us to seriously consider the introduction of a performance exam. The prerequisites for successfully implementing clinical performance exam as part of the national nursing licensing exam are a professional training process and forming a consortium to standardize practical training.

Perception survey on the introduction of clinical performance examination as part of the national nursing licensing examination in Korea / 보건의료교육평가

PURPOSE: The purpose of this study was to analyze opinions about the action plan for implementation of clinical performance exam as part of the national nursing licensing examination and presents the expected effects of the performance exam and aspects to consider regarding its implementation. METHODS: This study used a mixed-methods design. Quantitative data were collected by a questionnaire survey, while qualitative data were collected by focus group interviews with experts. The survey targeted 200 nursing professors and clinical nurses with more than 5 years of work experience, and the focus group interviews were conducted with 28 of professors, clinical instructors, and nurses at hospitals. RESULTS: First, nursing professors and clinical specialists agreed that the current written tests have limitations in evaluating examinees' ability, and that the introduction of a clinical performance exam will yield positive results. Clinical performance exam is necessary to evaluate and improve nurses' work ability, which means that the implementation of a performance exam is advisable if its credibility and validity can be verified. Second, most respondents chose direct performance exams using simulators or standardized patients as the most suitable format of the test. CONCLUSION: In conclusion, the current national nursing licensing exam is somewhat limited in its ability to identify competent nurses. Thus, the time has come for us to seriously consider the introduction of a performance exam. The prerequisites for successfully implementing clinical performance exam as part of the national nursing licensing exam are a professional training process and forming a consortium to standardize practical training.

Selection of Tasks for Assessment of Pharmacy Clinical Performance in Korean Pharmacist Licensure Examination: Results of an Expert Survey

OBJECTIVE: As the demands of pharmacist's role and quality performance have increased, the verification of pharmacist's ability has been required. In this study, we aimed to select appropriate items for assessment of pharmacist's knowledge, attitude and performance. METHODS: Based on the pharmacist job analysis, we selected duties and tasks in consideration of applying pharmacy practical examination through brainstorming of internal researchers and group discussion with experts. Survey was conducted to evaluate the tasks according to the criteria detailed below: Realistic, Understandable, Measurable, Behavioral and Achievable (RUMBA). The subjects included professors at colleges of pharmacy and instructors of institutional or community pharmacy settings. RESULTS: Nine duties including 41 tasks were drawn for the survey through primary internal researchers. Of the 90 respondents, 95.6% were professors or preceptors who was engaged in practical training, and 62.2% had more than five years of practical experience. As a result of survey and discussion with expert panel, selected seven duties were selected as followings: ‘Patient (customer) reception’, ‘Drug preparation and distribution’, ‘Patient care’, ‘Administration’, ‘Patient counseling’, ‘Non-prescription medication counseling’, and ‘Provision of drug information’. The final 20 tasks from seven duties were chosen to assess skills that a pharmacist should be able to perform. CONCLUSION: This is the first study to select the items that can be included in pharmacist practical examination in the future, based on the RUMBA criteria. As a next step, it is necessary to study how to implement these items.

[A school-level longitudinal study of clinical performance examination scores].

PURPOSE: This school-level longitudinal study examined 7 years of clinical performance data to determine differences (effects) in students and annual changes within a school and between schools; examine how much their predictors (characteristics) influenced the variation in student performance; and calculate estimates of the schools' initial status and growth. METHODS: A school-level longitudinal model was tested: level 1 (between students), level 2 (annual change within a school), and level 3 (between schools). The study sample comprised students who belonged to the CPX Consortium (n=5,283 for 2005~2008 and n=4,337 for 2009~2011). RESULTS: Despite a difference between evaluation domains, the performance outcomes were related to individual large-effect differences and small-effect school-level differences. Physical examination, clinical courtesy, and patient education were strongly influenced by the school effect, whereas patient-physician interaction was not affected much. CONCLUSION: Student scores are influenced by the school effect (differences), and the predictors explain the variation in differences, depending on the evaluation domain.

A school-level longitudinal study of clinical performance examination scores / 한국의학교육

PURPOSE: This school-level longitudinal study examined 7 years of clinical performance data to determine differences (effects) in students and annual changes within a school and between schools; examine how much their predictors (characteristics) influenced the variation in student performance; and calculate estimates of the schools' initial status and growth. METHODS: A school-level longitudinal model was tested: level 1 (between students), level 2 (annual change within a school), and level 3 (between schools). The study sample comprised students who belonged to the CPX Consortium (n=5,283 for 2005~2008 and n=4,337 for 2009~2011). RESULTS: Despite a difference between evaluation domains, the performance outcomes were related to individual large-effect differences and small-effect school-level differences. Physical examination, clinical courtesy, and patient education were strongly influenced by the school effect, whereas patient-physician interaction was not affected much. CONCLUSION: Student scores are influenced by the school effect (differences), and the predictors explain the variation in differences, depending on the evaluation domain.

The Effects of Preclinical Clinical Performance Examination on Nursing Students' Confidence in Nursing Skills and Critical Thinking Competence / 한국간호교육학회지

PURPOSE: The purpose of this study was to investigate the effects of preclinical clinical performance examination (CPX) on nursing students' confidence in their nursing skills and critical thinking competence. METHODS: The design of this research was one-group pretest-posttest, and the participants were 112 nursing students. The preclinical CPX consisted of a clinical examination, patient-nurse relationship, oral test of related knowledge, written test of the nursing process, and debriefing using comprehensive scenarios based on real patient cases. The confidence of nursing skills consisted of an 8-item NRS and the critical thinking competence consisted of a 12-item 4-point scale developed by researchers and measured in both the pretest and posttest. The collected data were analyzed using paired t-tests, ANOVA, and Pearson correlation coefficients. RESULTS: The score for confidence in nursing skills (t=10.60, p<.001) and that for critical thinking competence (t=7.03, p<.001) increased significantly after preclinical CPX. CONCLUSION: This study showed that preclinical CPX was effective in improving nursing students' confidence in their nursing skills and critical thinking competence. Therefore, preclinical CPX is expected to be utilized in nursing practice education. Additional studies including those on control groups are recommended to compare differences between the preclinical CPX group and control group.

Impact of clinical performance examination on incoming interns' clinical competency in differential diagnosis of headache.

BACKGROUND: In Korea, clinical performance examination (CPX) has been included in license examination for medical doctors since 2009 in order to improve clinical performance of medical students. This study aimed to evaluate the contribution of CPX to medical education. METHODS: Clinical competency in the differential diagnosis of secondary headache was compared between the incoming interns in 2009 unexposed to CPX and the incoming interns in 2010 exposed to CPX, using the data of patients who visited the emergency department due to headache (181 patients seen by 60 CPX non-exposed interns and 150 patients seen by 50 CPX-exposed interns). We obtained the data by reviewing electronic medical records and nominal lists of doctors. Clinical competency was assessed by sensitivity and specificity between the diagnostic impression by interns and the final diagnosis. The association between CPX exposure and clinical competency in secondary headache diagnosis was evaluated using multiple logistic regression analysis. RESULTS: When we assessed clinical competency on the basis of all listed diagnostic impressions, sensitivity and specificity were 67.9% and 80.0%, respectively, for headaches seen by CPX-exposed interns, and 51.7%, and 71.7%, respectively, for headaches seen by CPX non-exposed interns. Multivariable adjusted logistic regression analysis showed exposure to CPX was not associated with increased competency for identifying secondary headache. CONCLUSION: Exposure to CPX as a part of the medical license examination was not effective for the improvement of clinical competency of interns in identifying secondary headache.

Changes in medical students' patient-centeredness attitudes by implementation of clinical performance examination.

PURPOSE: From 2009, the Korean Medical Licensure Exam implemented a clinical performance examination (CPX) that highlighted the importance of good patient-physician relationships in medical education. This study aimed to examine changes in medical students' attitudes before and after implementation of the CPX in their medical education curriculum. METHODS: In 2006 and 2009, 236 fourth-year medial students of C College of Medicine took the Patient Practitioner Orientation Scale (PPOS) by Krupet et al. (2000), which measures patient-centered attitudes in patient-physician relationships. The data were analyzed by independent t-test and two-way analysis of variance using SPSS 21.0. RESULTS: The PPOS scores of year 2006 students were 3.88±0.25 for males and 3.98±0.38 for females. For year 2009 students, males scored 3.81±0.42 and females scored 4.01±0.48. All students had higher Care scores than Share scores (2006: Share, 3.67±0.47 vs. Care, 4.19±0.51; 2009: Share, 3.56±0.34 vs. Care, 4.18±0.53). There were significant differences in PPOS and Share scores by gender before and after the CPX. With regard to Care scores, female students' scores tended to rise and males' scores declined over time. CONCLUSION: An educational program is needed for students to foster patient-centered attitudes, but gender differences should be taken into account.

Impact of Clinical Performance Examination on Incoming Interns' Clinical Competency in Differential Diagnosis of Headache / 가정의학회지

BACKGROUND: In Korea, clinical performance examination (CPX) has been included in license examination for medical doctors since 2009 in order to improve clinical performance of medical students. This study aimed to evaluate the contribution of CPX to medical education. METHODS: Clinical competency in the differential diagnosis of secondary headache was compared between the incoming interns in 2009 unexposed to CPX and the incoming interns in 2010 exposed to CPX, using the data of patients who visited the emergency department due to headache (181 patients seen by 60 CPX non-exposed interns and 150 patients seen by 50 CPX-exposed interns). We obtained the data by reviewing electronic medical records and nominal lists of doctors. Clinical competency was assessed by sensitivity and specificity between the diagnostic impression by interns and the final diagnosis. The association between CPX exposure and clinical competency in secondary headache diagnosis was evaluated using multiple logistic regression analysis. RESULTS: When we assessed clinical competency on the basis of all listed diagnostic impressions, sensitivity and specificity were 67.9% and 80.0%, respectively, for headaches seen by CPX-exposed interns, and 51.7%, and 71.7%, respectively, for headaches seen by CPX non-exposed interns. Multivariable adjusted logistic regression analysis showed exposure to CPX was not associated with increased competency for identifying secondary headache. CONCLUSION: Exposure to CPX as a part of the medical license examination was not effective for the improvement of clinical competency of interns in identifying secondary headache.

Changes in medical students' patient-centeredness attitudes by implementation of clinical performance examination / 한국의학교육

PURPOSE: From 2009, the Korean Medical Licensure Exam implemented a clinical performance examination (CPX) that highlighted the importance of good patient-physician relationships in medical education. This study aimed to examine changes in medical students' attitudes before and after implementation of the CPX in their medical education curriculum. METHODS: In 2006 and 2009, 236 fourth-year medial students of C College of Medicine took the Patient Practitioner Orientation Scale (PPOS) by Krupet et al. (2000), which measures patient-centered attitudes in patient-physician relationships. The data were analyzed by independent t-test and two-way analysis of variance using SPSS 21.0. RESULTS: The PPOS scores of year 2006 students were 3.88+/-0.25 for males and 3.98+/-0.38 for females. For year 2009 students, males scored 3.81+/-0.42 and females scored 4.01+/-0.48. All students had higher Care scores than Share scores (2006: Share, 3.67+/-0.47 vs. Care, 4.19+/-0.51; 2009: Share, 3.56+/-0.34 vs. Care, 4.18+/-0.53). There were significant differences in PPOS and Share scores by gender before and after the CPX. With regard to Care scores, female students' scores tended to rise and males' scores declined over time. CONCLUSION: An educational program is needed for students to foster patient-centered attitudes, but gender differences should be taken into account.

Improvement in Clinical Performance of Interns and Residents through Clinical Skills Assessment of the Korean Medical Licensing Examination.

PURPOSE: To evaluate the clinical performance through the Korean Medical Licensing Examination clinical skills assessment (KMLE CSA) this survey was done. METHODS: A survey of 130 interns and residents (46 applicants and 84 non-applicants for the KMLE CSA) at a university hospital in Seoul was conducted in January and February 2012. The data were gathered using a structured and self-administered questionnaire. For the items that assessed the clinical performance of these subjects, we selected 15 items that are mostly frequently used by Delphi's technique, and difficult procedural skills based on the results of medical students' performance. We also used subcomponents of the clinical problems test of the KMLE CSA. RESULTS: The total score on the KMLE CSA improved by 1.33 points (a perfect score is 10), 1.49 points for procedural skills, and 0.84 points for clinical problems by multiple regression analysis. The variables that influenced clinical skills were sex (females had 0.86 more points than males), experience in military or public services (1.04 points higher than persons without experience), and type of school (graduates of medical school had 1.41 more points than graduates of professional graduate school). CONCLUSION: Implementation of the KMLE CSA improved the clinical performance of medical graduates.

Emerging tasks of specialty certifying examination: educational measurement considerations

Medical specialty systems were launched in 1951 by the National Medical Services Law. The following year, the specialty certifying examination had implemented in the form of portfolio evaluation. A paper-and-pencil type examination was implemented in 1960, and the 55th examination was carried out in January 2012. Currently, 26 specialties are represented, and the overall pass rate is over 90%. The examination consists of a step 1 paper-and-pencil test and step 2 skills test. In the step 1 test, the test items are multiple choice questions and short answer questions. Clinical performance examination is partially applied to the step 2 test. To cope with changes in the social situation and the growth of medical services, developmental changes are needed in the specialty certifying examinations. Performance assessment is an alternative worth considering. CPX should be a major part of the skill test. A computer-based test should be introduced as soon as possible, and it could eventually be developed into an adaptive test.

Improvement in Clinical Performance of Interns and Residents through Clinical Skills Assessment of the Korean Medical Licensing Examination / 한국의학교육

PURPOSE: To evaluate the clinical performance through the Korean Medical Licensing Examination clinical skills assessment (KMLE CSA) this survey was done. METHODS: A survey of 130 interns and residents (46 applicants and 84 non-applicants for the KMLE CSA) at a university hospital in Seoul was conducted in January and February 2012. The data were gathered using a structured and self-administered questionnaire. For the items that assessed the clinical performance of these subjects, we selected 15 items that are mostly frequently used by Delphi's technique, and difficult procedural skills based on the results of medical students' performance. We also used subcomponents of the clinical problems test of the KMLE CSA. RESULTS: The total score on the KMLE CSA improved by 1.33 points (a perfect score is 10), 1.49 points for procedural skills, and 0.84 points for clinical problems by multiple regression analysis. The variables that influenced clinical skills were sex (females had 0.86 more points than males), experience in military or public services (1.04 points higher than persons without experience), and type of school (graduates of medical school had 1.41 more points than graduates of professional graduate school). CONCLUSION: Implementation of the KMLE CSA improved the clinical performance of medical graduates.

Effect of emotional intelligence on patient-physician interaction scores of clinical performance examination.

PURPOSE: The patient-physician interaction (PPI) is a critical part of the clinical encounter. Recent studies have emphasized the importance of the emotional intelligence (EI) of physician in the PPI. Despite emphasizing the EI, previous studies offer limited evidence regarding the effect of a student's EI on the PPI. The purpose of this study is to explore the differences in EI depending on the demographics of medical students and the correlation between EI and PPI scores. METHODS: The sample was 85 fourth-grade medical students. Prior to taking a 12-station clinical performance examination, the students completed questionnaires on their own perception of the EI, which included 5 domains and 50 items. The tool that was used to assess the level of EI was Moon's modified version of the EI test for adults. We investigated differences in EI depending on the demographics of medical students by ANOVA and noted a correlation between EI and PPI scores by stepwise multiple regression analysis. RESULTS: This study found that females or graduate entry students have higher EI scores and that 25 to 30-year-old students have higher EI scores than aged under 25 years. The PPI scores correlated positively with total EI scores (r=0.32) and 2 subdomains (perception and expression of emotion, r=0.26; empathy, r=0.33). Two subdomains were the best predictors of PPI score (R2=0.171). CONCLUSION: EI correlates significantly with PPI score and affects it. We conclude that EI is a key influence of the PPI. Further research is required to explore whether this is a consistent effect.

The Change of CPX Scores according to Repeated CPXs.

PURPOSE: Most medical schools have held clinical skills training programs recently. Despite these educational endeavors, few studies have attempted to address the effect of clinical skills assessments on clinical performance. This study investigated whether repeated experiences with the examination improved medical students' history-taking, physical exams, and patient-physician interactions (PPIs). METHODS: The subjects of the study were 101 4th-year medical students who participated in the clinical performance examination (CPX) 3 times. They completed their core clerkship before acquiring the first CPX scores; we tracked down the scores of three sets of CPX for 3 subdomains (history taking, physical exam, and patient-physician interaction) and investigated the changes in these scores. Additionally, we classified the research subjects into 3 groups by total CPX score-higher (upper 30%, n=30), intermediate (medium 40%, n=40), and lower (lower 30%, n=30)-and compared the curves for each group. RESULTS: Significant improvements were made on history taking and physical exam (F=130.786/237.358, p<0.01), while proficiency on the PPI declined (F=17.621, p<0.01). Additionally, scores in all levels improved continuously on history taking and physical exam, while students of the high and low levels experienced a sharp decline on the PPI (F=11.628, p<0.01). CONCLUSION: Improvement in the history-taking score reflects an accumulation of clinical knowledge and clinical exposure. Improvement on the physical exam score is affected by repeated practice on similar or identical cases and receipt of feedback. That PPI can deteriorate might be an effect of one's negative experience in a clinical clerkship.

The Change of CPX Scores according to Repeated CPXs / 한국의학교육

PURPOSE: Most medical schools have held clinical skills training programs recently. Despite these educational endeavors, few studies have attempted to address the effect of clinical skills assessments on clinical performance. This study investigated whether repeated experiences with the examination improved medical students' history-taking, physical exams, and patient-physician interactions (PPIs). METHODS: The subjects of the study were 101 4th-year medical students who participated in the clinical performance examination (CPX) 3 times. They completed their core clerkship before acquiring the first CPX scores; we tracked down the scores of three sets of CPX for 3 subdomains (history taking, physical exam, and patient-physician interaction) and investigated the changes in these scores. Additionally, we classified the research subjects into 3 groups by total CPX score-higher (upper 30%, n=30), intermediate (medium 40%, n=40), and lower (lower 30%, n=30)-and compared the curves for each group. RESULTS: Significant improvements were made on history taking and physical exam (F=130.786/237.358, p<0.01), while proficiency on the PPI declined (F=17.621, p<0.01). Additionally, scores in all levels improved continuously on history taking and physical exam, while students of the high and low levels experienced a sharp decline on the PPI (F=11.628, p<0.01). CONCLUSION: Improvement in the history-taking score reflects an accumulation of clinical knowledge and clinical exposure. Improvement on the physical exam score is affected by repeated practice on similar or identical cases and receipt of feedback. That PPI can deteriorate might be an effect of one's negative experience in a clinical clerkship.