Understanding “Credible” in a Systematic Review
Credibility starts with the source’s peer‑review status. Peer‑reviewed journals have a formal editorial process that evaluates methodology, analysis, and conclusions before publication. A systematic review on telemedicine effectiveness should therefore prioritize studies that have undergone this scrutiny.
Beyond peer review, credibility also depends on the authors’ affiliations and disclosed conflicts of interest. Articles that list institutional support from recognized universities or health agencies, and that transparently report funding sources, are more likely to be trustworthy.
When you encounter a study that is not peer‑reviewed—such as a conference abstract, a preprint, or a government report—you can still include it if it provides valuable data. However, you must assess its methodological rigor and note any limitations in your review.
In short, a credible source is one that has been vetted by experts, has clear authorship, and discloses potential biases. This foundation will guide every search and selection decision you make.
Building a Search Strategy that Aligns with APA 7th Edition
Start by defining your research question using the PICO framework: Population (rural patients), Intervention (telemedicine), Comparison (traditional care), Outcome (clinical effectiveness). Translate each element into search terms and Boolean operators.
Example search string for PubMed: ("telemedicine" OR "remote care") AND ("rural health" OR "rural population") AND ("effectiveness" OR "clinical outcomes"). Use quotation marks to capture exact phrases and limit results to peer‑reviewed journals.
Once you have a working string, adapt it for each database. Some databases support field tags (e.g., tiab[Title/Abstract] in PubMed) that narrow results to relevant sections.
Document every step: record the database name, date of search, exact query, and the number of hits. This audit trail is essential for reproducibility and for meeting APA 7th edition’s emphasis on transparency.
Evaluating Sources: The Four Pillars of Trustworthiness
| Pillar | What to Check |
|---|---|
| Peer Review | Is the article published in a journal with a formal review process? |
| Authorship | Do the authors have institutional affiliations? Are conflicts of interest disclosed? |
| Methodology | Is the study design appropriate? Are sample sizes adequate? Are statistical methods sound? |
| Relevance | Does the study address your PICO elements? Is the population rural and the intervention telemedicine? |
Apply this framework to each candidate article. If a study fails on more than one pillar, consider excluding it unless it offers unique data that cannot be found elsewhere.
Remember that APA 7th edition requires accurate citation of each source. Use your reference manager to export citations in APA format, then review the output for formatting errors.
Practical Tips for Accessing Full Texts and Managing Paywalls
- Use Library Interlibrary Loan (ILL): If a journal is behind a paywall, request the article through your university’s ILL service. Librarians can often retrieve PDFs within a few days.
- Check Open Access Repositories: Platforms like PubMed Central, CORE, and institutional repositories host free versions of many articles.
- Leverage “Author Manuscript” Links: Many journals provide a free PDF of the author’s accepted manuscript. Look for a link on the article’s abstract page.
- Ask the Author Directly: A polite email requesting a copy can yield a PDF, especially if the author is a graduate student or early‑career researcher.
- Use Browser Extensions: Tools like Unpaywall or Open Access Button can automatically locate free versions of paywalled articles.
Keep a spreadsheet of all access attempts, noting the outcome and any contact emails. This record will help you explain any missing data during the review process.
Documenting Your Search: Keeping an Audit Trail
Maintain a log that captures the following for each database: date, search string, filters applied, and total hits. Store this log in a shared folder or a cloud‑based note‑taking app that you can export as a PDF.
When you screen titles and abstracts, record the decision (include, exclude, unsure) and the reason for exclusion. A simple table works well:
| Article ID | Decision | Reason |
|---|---|---|
| PMID123456 | Exclude | Not rural population |
| PMID654321 | Include | RCT on telemedicine in rural clinics |
These records will support the PRISMA flow diagram you’ll generate later and demonstrate the rigor of your methodology, aligning with APA 7th edition’s call for methodological transparency.
Common Obstacles and How to Overcome Them
Paywall frustration: Use the strategies above and remember that many journals offer a free 6‑month embargo period for institutional access.
Limited database coverage: If a database lacks coverage of regional journals, supplement with Google Scholar but flag these sources for closer scrutiny.
Language barriers: Non‑English studies may be relevant. Use translation tools or seek assistance from peers fluent in the language. Note the translation method in your review.
Duplicate records: Cross‑check PubMed, Scopus, and Web of Science entries. Use reference manager deduplication features to streamline the process.
Incomplete reporting: Some studies omit crucial details like funding or conflict of interest. Contact authors for clarification or consider excluding the study if essential data are missing.
Final Checklist for APA 7th Edition Compliance
- All in‑text citations follow APA format: (Author, Year) or (Author et al., Year) for >20 authors.
- Reference list entries include author(s), year, title, source, volume(issue), pages, and DOI or URL.
- Journal titles are italicized; article titles use sentence case.
- DOIs are formatted as https://doi.org/xxxx and are included when available.
- Non‑journal sources (reports, books) use the appropriate APA format, e.g., Author, A. A. (Year). Title. Publisher.
- All URLs are current and functional; remove any that are broken.
- Reference manager output is double‑checked for punctuation and spacing errors.
- The reference list is alphabetized by the first author’s surname.
- All citations in the text correspond to a reference entry and vice versa.
Once you pass this checklist, your bibliography will meet APA 7th edition standards and your systematic review will reflect the highest level of scholarly rigor.
Putting It All Together: A Step‑by‑Step Scenario
Imagine you’re reviewing the effectiveness of telemedicine for managing hypertension in rural communities. You begin by searching PubMed with the string: "telemedicine" AND "rural health" AND "hypertension" AND ("clinical outcomes" OR "blood pressure"). The search yields 312 results.
Using your reference manager, you import all records and run a deduplication filter, leaving 280 unique articles. You screen titles and abstracts, marking 45 as potentially relevant. After full‑text review, 18 studies meet all inclusion criteria.
During full‑text screening, you encounter a paywalled RCT published in a high‑impact journal. You request the PDF via ILL, receive it within three days, and add it to your dataset. You note this in your audit log.
All 18 studies are evaluated against the four pillars of trustworthiness. Two studies lack clear methodology, so you exclude them. The remaining 16 are incorporated into your meta‑analysis.
You generate a PRISMA flow diagram, summarize findings, and write the discussion. Throughout, you maintain the audit trail and reference manager records, ensuring every citation is correctly formatted in APA 7th edition.
When you submit the manuscript, reviewers will see a transparent, reproducible methodology and a bibliography that adheres to APA standards—an outcome that reflects both academic integrity and practical skill.
Concise Summary of the Process
Start with a clear research question and build a Boolean search string. Use reputable databases and document every step. Evaluate each source against peer review, authorship, methodology, and relevance. Overcome access barriers with library services and open‑access tools. Keep a meticulous audit trail and use a reference manager to export APA 7th edition citations. Finally, review your reference list against the APA checklist before submission. Following this workflow will help you assemble a credible, well‑documented systematic review on telemedicine in rural settings.