Clicking around here, you can find pretty much everything from class about research methods, with the exception of the experimental research method. Those notes will be posted tomorrow.
Here is the Research Methods Chart, which covers the strengths, weaknesses, and optimal time to use each research method. You should note that this chart is blank. If you need information, please check with a classmate.
The articles from the Boston Globe that conflate correlation with causation are here. The in-class worksheet is helpful to tease out the differences between correlation and causation.
Stay tuned for the experimental method.