If you are trying to find example articles or dissertations that have used specific methodologies, in addition to the resources above, you can add the type of study, data gathering method, type of data analysis, etc. as a keyword to your search in any relevant database. For example: qualitative, quantitative, case study, interview, survey, statistical, grounded theory, focus group, T-test, mixed-methods, etc.
Here are a few examples of resources about research methodology. More can be found by using the UW Libraries Search by subject terms such as "Education Research Methodology" and/or the methodology "Qualitative Research," for example.