Question

You are a researcher who is interested in comparing the distribution of colon cancer among nations. Give the name of the study that is the best observational epidemiological study in exploring the differences in the occurence of diseases between nations. Support your statement of the study type by explaining the strengths of the study

Answer 1

Most of the research which is done for an effective results observational epidemiological method is in practice because of its greatest advantage, convenience while conducting a study on larger population.The strength of the study are

• The subjects can be observed in a setting which is not artificial rather natural.This enables to have a better comparison between the cause and effect.
• The relationship between the subject due to natural changes during the study can be assessed,identified and correlated to the results
• The changes in the study is possible if there is an expected disaster or harmful effects on the subjects who are in the study.