Borrow Methods
During your research, you may have found existing studies that you can use as models. You can take the method from one study and apply it to a new population. Or, you can take parts of several studies' methods and create a new method. You may use these methods or find a whole new way to answer your question.
Borrow Data
During your research, you may have found a dataset related to your topic. You may be able to analyze that dataset to answer your question. Since information is valuable, you will need permission to use that dataset. Check for data availability statements or terms of use. Sometimes nothing will say that you can use the data. You will need to contact the people who collected the data to request permission to use it.