I thought the section in chapter 15 about cause and effect in populations was interesting and easy to read and understand.
Cause in populations: given the cause, there’s a higher probability that the effect will follow than if there were not the cause
For example: Studying gets you higher grades.
*In relation to cause in population, people who study will have a much higher probability of receiving a higher grader than people who do not study.
1. Using a controlled experiment: cause-to-effect, we can use a control group of students who will not study and another group who will. Using a control group shows that, at least statistically, the cause makes a difference.
2. Using an uncontrolled experiment: cause-to-effect, we start with the suspected cause (of studying) and see if the effect follows (higher test grade). Though it’s uncontrolled: some people may only study for a certain amount of time, some people may already be knowledgeable about the subject, etc.
3. Using an uncontrolled experiment: effect-to-cause, we start with the effect in the population and try to account for how it got there. We would pick out all the high-grade tests to see if there is some common thread with the students’ studying that got them such a high grade.
Your post is very helpful I had a hard time understanding that concept but done a great job at describing and explain what the cause could be taken by and proven such by experiment. I really like that you can make so easy to understand and I think the simplicity is a great tool. I like that not many words were use, and that you went straight to the point. I also like that you gave the example for every single type.many times the wording can be hard to follow but this time is was very easy great job.
ReplyDeleteThank you for the time to explain Controlled Experiment and Uncontrolled Experiment. Your post helped me understand chapter fifteen from the book. I tried to search the experiments online but i could not find anything that can help me understand what Epstein was saying. After carefully reading through your post, i was able to publish my post for the week. The examples you used towards students and population for high test scores was a good way to help illustrate both Controlled and Uncontrolled Experiments. It's easier for me to construct cause-to-effect, effect-to-cause, and effect-to-cause after reading through your examples.
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