The following resources point you to established evidence based practices. However, note that your particular topic or interest might not be represented in this type of literature. If you are having trouble finding documents via these EBP databases, then consider searching for research articles on your topic. You can use databases such as PsycINFO, Social Services Abstracts, and ERIC to find quantitative studies such as Randomized Controlled Trials, or qualitative studies.
Different types of research demonstrate stronger or weaker levels of evidence, in order:
The pyramid organizes these types of research in order of strength, but also makes note of the difference in the amount of research available. For example, while systematic reviews and meta-analyses provide strong sources of evidence to answer a clinical question, there are quite a bit fewer of these resources than the more common quantitative research article.
Robin A. Paynter, (2009) "Evidence-based research in the applied social sciences", Reference Services Review, 37 (4), pp.435 - 450.
Search the EBP database most appropriate for your topic for systematic reviews or meta-analyses. If none are found, move to the most appropriate disciplinary database.
Focus on finding original research studies as opposed to literature reviews.
If you are still not finding useful articles, consider that your search may be too narrow. Sometimes you need to find items that are similar enough to your question that you can extrapolate the findings.
When searching for evidence from quantitative or qualitative research articles, adding keywords like "evidence-based" or "systematic review" will help focus your search.