To collect secondary sources, you need to identify your core research keywords, search reputable academic databases, and use citation tracking to discover related literature.
Secondary sources—such as peer-reviewed journal articles, literature reviews, academic books, and meta-analyses—interpret or analyze primary data. Gathering them systematically is the foundation of a strong literature review. Here is a step-by-step guide to finding and collecting high-quality secondary literature for your research.
1. Define Your Search Strategy
Before you start looking for papers, break your research question down into core concepts. Brainstorm synonyms, related terms, and alternate spellings for each concept. Using Boolean operators (AND, OR, NOT) will help you combine these keywords to narrow or broaden your search queries effectively.
2. Search Reputable Academic Databases
Start your literature search in established academic databases relevant to your field, such as JSTOR, PubMed, Scopus, or your university’s library catalog. While traditional databases are essential, relying strictly on keyword matching often yields thousands of irrelevant results. To avoid this information overload, you can use WisPaper's Scholar Search, which understands your underlying research intent rather than just matching keywords, automatically filtering out up to 90% of the noise.
3. Practice Citation Chaining
Once you find a few highly relevant papers, use them to find more. This process, often called snowballing or citation chaining, works in two directions:
- Backward chaining: Review the bibliography or reference list of a helpful paper to find the older, foundational studies the authors relied upon.
- Forward chaining: Check academic search engines to see which newer papers have cited the article you are currently reading.
4. Target Literature Reviews and Meta-Analyses
If you are entering a new field of study, look specifically for systematic reviews or meta-analyses. These papers synthesize dozens or even hundreds of other primary and secondary studies into one comprehensive overview. They serve as excellent roadmaps for a topic and are goldmines for discovering other highly relevant sources.
5. Evaluate and Organize Your Sources
As you collect articles, quickly evaluate their credibility. Prioritize peer-reviewed articles from reputable journals and check the publication date to ensure the research is current. Finally, never rely on a desktop folder full of vaguely named PDFs. Save your collected sources immediately into a reference manager so you can easily organize your library, tag papers by topic, and seamlessly generate citations when it is time to write.
