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Showing posts from February, 2021

Common Statistical Misconceptions in Biomedical Research

As a university student who studies Statistics, I often use many statistical methods to analyze various questions that I want to research in my daily study. While there are some statistical misconceptions and improper statistical analysis methods that I did know before but was used in my past statistical researches. From the second week's materials of my statistics course, I learned some misconceptions about data analysis, especially p-hacking is appropriate, p-values covey information about effect size and the standard error of the mean quantifies variability, which inspires and interests me a lot. Afterwards, I understand more statistical misconceptions, particularly in the field of biomedicine. In the following, I plan to share some common statistical misconceptions in biomedical scientific research that I learned recently.  First of all, when analyzing data from a census procedure, many researchers may use statistical inference tools inappropriately, especially hypothesis testi...

COVID-19 Pandemic Modelling Forecasts vs. The Actual Situation in Canada

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Since the outbreak of the COVID-19 in January 2020, people have paid close attention to the trend of the epidemic and the development of vaccines. At the beginning of the outbreak of the epidemic in Toronto, the Ontario government announced that all schools would replace courses in-person with online courses. At that time, I stayed in Toronto and took my online courses at my rental houses every day. After accomplishing the last semester of my sophomore year and remote internship, I went back to my country at the end of August 2020. Now, my life is not different from my life in Toronto at the time of the outbreak of COVID-19, staying in the room and taking online courses is my daily task. It seems that the shadow of the epidemic still hangs over me.   After I return to my country, I still concern about the situation of the COVID-19 pandemic in Canada, and I want to figure out whether there exists an apparent difference between Canada's COVID-19 pandemic modelling forecasts and reali...