'Open Source' refers to websites, systems, and products that are freely available online to all users.
'Open Access' is a term used to describe scholarly work that has been made freely available to all online. The Directory of Open Access Journals is one of the most well known examples of an 'open access' venue. Open Access can also describe material found in institutional repositories and research institutes.
All the links on this page are from 'Open Source' venues. Much, but not all, of the content referenced in these sources are 'Open Access' materials.
From the Campbell Collaboration: "The purpose of a systematic review is to sum up the best available research on a specific question. This is done by synthesizing the results of several studies."
From the Merriam-Webster Dictionary: A meta-analysis is "a quantitative statistical analysis of several separate but similar experiments or studies in order to test the pooled data for statistical significance."
"Think tanks are organizations that have significant autonomy from governmental interests and that synthesize, create, or disseminate information, ideas, or advice to the public, policymakers, other organizations, and the press."
Anderson, G. L. & Herr, K.G. (Eds) (2007). Think Tanks. In Encyclopedia of Activism and Social Justice. (Vol. 3, pp. 1369-1372). Thousand Oaks, CA: SAGE Reference.
The web sites, organizations and agencies listed in this guide are provided purely as a convenience and do not in any way imply an endorsement of contents or services.