To filter primary sources with a team, you need to establish clear inclusion criteria, use centralized reference management software, and systematically divide the screening process to prevent duplicate work.
Collaborating on a literature review or research project can quickly become chaotic if multiple researchers are downloading and evaluating the same papers. By setting up a standardized workflow, your team can efficiently identify high-quality primary research articles—such as empirical studies, clinical trials, or historical first-hand accounts—without wasting time on irrelevant data.
1. Establish Clear Inclusion and Exclusion Criteria
Before anyone starts a literature search, your team must agree on exactly what qualifies as a primary source for your specific project. Create a shared document detailing your criteria. Are you only looking for peer-reviewed empirical studies? Do you need qualitative data, quantitative data, or both? Setting strict parameters ensures that every team member evaluates search results using the exact same standard.
2. Centralize Your Reference Management
Avoid sending PDFs back and forth via email or dumping them into unorganized cloud folders. Instead, set up a shared workspace where all team members can upload, tag, and categorize their findings. Using a centralized system like WisPaper's My Library helps streamline this process by acting as a Zotero-style manager where your team can organize papers, manage references, and even use AI to chat with your uploaded documents to quickly verify if a paper contains original data.
3. Divide the Search Systematically
To ensure comprehensive coverage and avoid overlapping efforts, divide the workload logically. You can assign team members to focus on:
- Specific databases: One person handles PubMed, while another searches JSTOR or Web of Science.
- Date ranges: Split the publication years (e.g., one person covers 2015–2019, another covers 2020–2024).
- Concepts: Assign specific search strings or variables to different researchers.
4. Conduct a Two-Phase Screening Process
For rigorous projects like systematic reviews, filtering should happen in two stages. First, have team members screen the titles and abstracts of the gathered literature to quickly eliminate obvious secondary sources, such as meta-analyses, review articles, or opinion pieces. Next, perform a full-text review on the remaining papers to confirm they actually contain the original experiments and methodologies required for your research.
5. Create a Conflict Resolution Protocol
Even with clear criteria, team members will occasionally disagree on whether a specific paper is a primary or secondary source. Establish a simple protocol for these edge cases. Usually, this involves tagging the disputed paper in your reference manager and having a third team member or the lead researcher review the full text to make a final, objective decision.
