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1 Descriptive statistics
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1.1 Lecture 1
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Why are methodology and statistics important in science?
- You can substantiate theories based on observations;
- You can communicate results by using 'objective' criterium. -
Why are methodology and statistics important in society?
- With statistical substantiation you can give your choice for policy a scientific touch,
- ... And that is convincing. -
With what has methodology nothing to do?
- With the contents of the research;
- With the details of the lab work. -
With what is methodology concerned?
The set up of the research (how you have to do the research in order to get reliable knowledge). -
Does methodology only have to do with biomedical sciences?
No, it is a lot broader. -
When are multiple choice exam grades objective?
- When the criteria of choice are independent of assessor;
- Therefore reproducible;
- Someone else shall come to the same conclusion. -
What is the problem with biological material?
It is variable (genotypic & phenotypic), your measurements are not perfect. -
What do you have to realize about your resources and reality?
Your resources are not infinite, you will have to accept limited knowledge of reality. -
With what does the importance of statistics increase?
With the amount of variation. -
Which 3 sources of variation are there?
- Differences between individuals;
- Experimental and measurement errors;
- Factorial variation (caused by factor of interest: pills).
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