Medical students have generally positive attitudes towards science and scientific research in medicine. Attendance of a course on research methodology is related to a positive attitude towards science.

Academic misconduct is widespread among medical students at the largest medical school in Croatia and its prevalence is greater than that reported for developed countries. This may be related to social and cultural factors specific to a country in the midst of a post-communist transition to a market economy, and calls for measures to be instigated at an institutional level to educate against and prevent such behaviour.

Medical students have positive attitudes toward science and scientific method in medicine. Attendance of a course on research methodology had positive short-term effect on students' attitudes toward science. This positive effect should be maintained by vertical integration of the course in the medical curriculum.

Although moral reasoning is generally seen as independent of variables related to personality, our study indicated that Machiavellianism, especially its amorality and flattering subscales, were associated with moral reasoning. These results have important implications for teaching ethics and the responsible conduct of research in different cultural and socio-economic settings.

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