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Dr. James Decker

Dr. James Decker

Principal Evidence Synthesis Specialist

20+ years of research writing experience

Dr. James Decker is an evidence synthesis specialist with a PhD in Epidemiology and an MSc in Evidence-Based Healthcare. He works with researchers, clinicians, healthcare professionals, and doctoral students to produce rigorous, publication-ready evidence syntheses that support clinical practice, healthcare decision-making, and academic success.

His expertise includes systematic reviews, scoping reviews, meta-analyses, PRISMA-guided reporting, evidence synthesis, and critical appraisal of scientific literature. Whether supporting a research team preparing a manuscript for publication or guiding a Doctor of Nursing Practice (DNP) student through a capstone project, Dr. Decker applies internationally recognized methodologies to ensure every project meets the highest standards of methodological quality and reporting.

Dr. Decker provides end-to-end support throughout the evidence synthesis process, including protocol development, research question refinement, comprehensive literature searches, study screening, data extraction, quality appraisal, evidence synthesis, and manuscript preparation. His approach emphasizes transparency, methodological rigor, and practical relevance, enabling clients to produce work that is both academically robust and clinically meaningful.

Articles by Dr.

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Systematic Reviews

Qualitative Evidence Synthesis: Choosing a Method, Running GRADE-CERQual, and Getting Past Reviewers

See how to choose between meta-ethnography, meta-aggregation, and thematic synthesis, run GRADE-CERQual, and build a Summary of Qualitative Findings table.

Aug 10, 2026 · 15 min read

Systematic Reviews

Getting Your Systematic Review Search Strategy PRESS-Reviewed: Why Peer Review of Your Search Matters

An inadequate search is the most common fatal flaw in a review. See the 6 PRESS elements, why the search is peer-reviewed before it runs, and how to get one.

Jul 16, 2026 · 18 min read

Systematic Reviews

How to Respond to Major Revisions on a Systematic Review

How to write a point-by-point response to major revisions on a systematic review: structure, tone, updated search and GRADE requests, and reviewer conflict.

Jul 16, 2026 · 16 min read

Systematic Reviews

Scoping Review or Systematic Review? A Decision Framework to Apply Before You Register

When to conduct a scoping review vs a systematic review: the JBI indications for each, PCC vs PICO, risk-of-bias appraisal, and where each protocol registers.

Jul 16, 2026 · 16 min read

Systematic Reviews

AMSTAR-2 Critical Domains: Why Systematic Reviews Are Rated Low or Critically Low Quality

How AMSTAR-2 rates a systematic review: the 16 items, the 7 critical domains, and why one critical flaw sends overall confidence to Low or Critically Low.

Jul 16, 2026 · 18 min read

Systematic Reviews

Manuscript Rejected? How to Write a Revise and Resubmit Response That Gets Accepted

84.7% of major revisions are ultimately accepted. A step-by-step guide to writing a point-by-point response letter for systematic reviews, with a full template.

Jun 26, 2026 · 21 min read

Systematic Reviews

Why You Need a Second Reviewer for Your Systematic Review (And How to Find One)

Single-reviewer abstract screening misses 13% of eligible studies. What MECIR C39 requires, how to measure inter-rater agreement, and how to find a second reviewer.

Jun 26, 2026 · 17 min read

Systematic Reviews

PROSPERO 2025 Update: What Changed and What it Means for your Review

The February 2025 PROSPERO relaunch changed how systematic reviews are registered. All co-authors must now individually approve before a record goes live.

Jun 22, 2026 · 16 min read

Systematic Reviews

How to Write a Systematic Review Protocol and Register It on PROSPERO

Only 46% of PROSPERO-registered protocols are ever published. This complete guide covers every field, registration steps, amendments, and the most common mistakes.

Jun 16, 2026 · 21 min read

Research

Why Was My Research Proposal Rejected? The Real Reasons and What to Do Next

Most research proposal rejections come down to fit, funding, and a proposal that could not demonstrate a feasible, original, well-scoped project. This guide covers the real reasons, how to diagnose yours, and the exact steps to take next.

Jun 1, 2026 · 19 min read

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