Instructor factors associated with medical students' lecture evaluation: a longitudinal analysis.

PURPOSE: This study identified factors that affect lecture evaluation by analyzing sophomores from Dankook University, examining each cluster's characteristics, and comparing differences among trajectories. METHODS: This study identified factors that affect lecture evaluation by analyzing sophomores from Dankook University, examining each cluster's characteristics, and comparing differences among trajectories. RESULTS: The lecture evaluation score decreased as the teaching hours per instructor in a year increased by an hour, and the number of instructors per lecture increased by one individual. During trajectory analysis, the first trajectory had lower lecture evaluation scores overall but relatively high appropriateness of the textbook and punctuality of class, whereas the second trajectory had higher lecture evaluation scores overall for all four items. CONCLUSION: The two trajectories showed differences in teaching methods (understanding of lecture content and usefulness of the lecture) rather than in external factors (appropriateness of the textbook and punctuality of class). Therefore, to improve lecture satisfaction, enhancing instructors' instructional competencies through lectures and adjusting the teaching hours by assigning an adequate number of instructors per lecture are recommended.

Analysis and suggestions on medical educators' roles.

PURPOSE: This study aimed to investigate the differences in the perception between professors and students regarding medical educators' roles and discuss their desirable roles. METHODS: A survey was administered to 116 professors and 379 students of the medical colleges from Dankook University and Hallym University. The subjects were given a self-created questionnaire designed to measure their perception of medical educators' roles. RESULTS: First, "student performance management" for professors and "teaching skill development" for students were recognized as the most essential medical educators' role. Second, females students perceived the roles to be more important than males in eight of 10 roles. CONCLUSION: First, "student performance management" for professors and "teaching skill development" for students were recognized as the most essential medical educators' role. Second, females students perceived the roles to be more important than males in eight of 10 roles.

The relationship between classical item characteristics and item response time on computer-based testing.

PURPOSE: This study investigated the relationship between the item response time (iRT) and classic item analysis indicators obtained from computer-based test (CBT) results and deduce students' problem-solving behavior using the relationship. METHODS: We retrospectively analyzed the results of the Comprehensive Basic Medical Sciences Examination conducted for 5 years by a CBT system in Dankook University College of Medicine. iRT is defined as the time spent to answer the question. The discrimination index and the difficulty level were used to analyze the items using classical test theory (CTT). The relationship of iRT and the CTT were investigated using a correlation analysis. An analysis of variance was performed to identify the difference between iRT and difficulty level. A regression analysis was conducted to examine the effect of the difficulty index and discrimination index on iRT. RESULTS: iRT increases with increasing difficulty index, and iRT tends to decrease with increasing discrimination index. The students' effort is increased when they solve difficult items but reduced when they are confronted with items with a high discrimination. The students' test effort represented by iRT was properly maintained when the items have a 'desirable' difficulty and a 'good' discrimination. CONCLUSION: The results of our study show that an adequate degree of item difficulty and discrimination is required to increase students' motivation. It might be inferred that with the combination of CTT and iRT, we can gain insights about the quality of the examination and test behaviors of the students, which can provide us with more powerful tools to improve them.

[Effect of sociodemographic factors, cancer, psychiatric disorder on suicide: gender and age-specific patterns].

OBJECTIVES: We examined the effect of sociodemographic factors, cancer, and psychiatric disorders on suicide by gender and age-specific patterns in South Korea. METHODS: The study is a case-control study. Claim data was obtained from the national health insurance database and national death registration database. The number of people who committed suicide was 11,523, which was matched with a control group consisting of ten times as many people at 115,230 selected from the national health insurance and medical aids beneficiaries. The medical utilization of the case group was one year before death and that of the control group was from July 1,2003 to June 30, 2004. Four variables-address, economic status, presence of a psychiatric disease, and cancer-were used in multiple logistic regression analyses. RESULTS: Living in cities or in rural areas showed a greater risk for suicide than living in a metropolitan city. Low economic status, the presence of a psychiatric disorder, and cancer were also statistically meaningful risk factors for suicide. The three major psychiatric diseases, schizophrenia, alcohol abuse, and bipolar disorder, were meaningful in all age groups, but the scale of the odds ratio differed by the age group. Only the psychiatric disorder variable was meaningful in the adolescent group, whereas a psychiatric disorder and economic status were meaningful for the young adult group, and all variables were meaningful for the middle-aged group. A psychiatric disorder and cancer were meaningful in the elderly group, economic status was meaningful for male subjects, and address was meaningful for female subjects. CONCLUSIONS: Factors such as living in city or rural areas, low economic status, the presence of a psychiatric disorder, and cancer were statistically meaningful risk factors in suicide. These factors also differed by age group. Therefore, policymakers should establish policies for suicide prevention that are relevant for each age group.

Factors influencing preferences for place of terminal care and of death among cancer patients and their families in Korea.

GOALS OF WORK: This study examined cancer patient and family member preferences-and the reasons for the preferences-regarding place of terminal care and of death. PATIENTS AND METHODS: We constructed a questionnaire that included demographic, clinical, and support network data for 371 patients who were treated at any of the seven university hospitals or the National Cancer Center in Korea and 281 of their family members. MAIN RESULTS: About half of the interviewed patients and half of the family members expressed a preference for the patient being cared for and dying at home. The preference reflected a wish for patients to live out their lives in privacy and to be with their family when their life ended. Those who expressed a preference to be cared for or to die in a hospital wanted to get medical treatment during the last days of life and to relieve their families of the burden of caring for them. Of the variables examined, support network factors and some sociodemographic factors (sex, family members' age, and place of residence) were strongly predictive of preferences. CONCLUSION: A majority of cancer patients preferred to receive terminal care at home. Cancer patients and family members with strong support groups were more likely to prefer the home as the place of terminal care and dying. Hence, improving support networks might increase the proportion of patients receiving home care and dying at home.

Assessing the factors influencing continuous quality improvement implementation: experience in Korean hospitals.

OBJECTIVE: To assess the extent of continuous quality improvement (CQI) implementation in Korean hospitals and to identify its influencing factors. DESIGN: Cross-sectional study by mailed questionnaire survey. STUDY PARTICIPANTS: One hundred and seventeen staff members with responsibility for CQI at 67 hospitals with > or = 400 beds. MAIN OUTCOME MEASURES: The degree of CQI implementation was measured using the Malcolm Baldrige National Quality Award Criteria (MBNQAC). Factors related to the degree of CQI implementation were the four components of the CQI pyramid, namely the cultural, technical, strategic, and structural attributes of individual hospitals. RESULTS: The average CQI implementation score across the seven dimensions by MBNQAC was 3.34 on a 5-point scale. The highest score was achieved in the dimension of 'customer satisfaction' (3.88), followed by 'information/analysis' (3.59), and 'quality management' (3.35). Regression analysis showed that hospitals which better fulfilled technical requirements, such as improving information systems (P< 0.05), using more scientific CQI tools, and adopting systematic problem-solving approaches (P<0.01), tended to achieve higher degrees of CQI implementation. Although statistically insignificant, positive trends were observed for group/developmental culture and the degree of employee empowerment, and the use of prospective strategy. CONCLUSION: It appears that the most important contributing factors to active CQI implementation in Korean hospitals were the use of scientific skills in decision-making and the adoption of a quality information system capable of producing precise and valid information.