A literature synthesis matrix for Notion that counts

See inside the Literature Synthesis Matrix

The problem it solves

"This is a list of summaries, not a synthesis." It is the most common comment on a first literature review draft, and it is hard to act on. You have read the papers. You have notes on each one. The chapter still reads paper by paper: Smith found this, Jones found that.

The fix is to organise the review around concepts rather than authors (Webster & Watson, 2002). A synthesis sentence says what several papers show together, where they agree, where they conflict and why (Torraco, 2005). That is hard to do from a folder of notes, because the notes are filed by paper.

Gaps have the same problem. "No study has looked at X" is a strong claim, and supervisors know that a gap is often just the edge of what you have read. A gap needs to be argued, not just declared (Sandberg & Alvesson, 2011).

This studio turns your reading into a concept matrix that counts: how many papers speak to each concept, how strong they are, whether they agree, and whether each claim you write rests on more than one paper.

How it works: Extract → Spot → Synthesise

1. Extract

   List the concepts in your framework first, from your research questions. Then log one finding per paper per concept, with its direction (positive, negative, null or mixed) and the page or table it came from.

2. Spot

   Read the gap meter. Every concept shows how many papers cover it, whether any is appraised Strong, and whether the papers agree. Concepts with no findings still show as rows, so candidate gaps are visible before you write.

3. Synthesise

   Write each claim as a synthesis statement: an agreement, a disagreement, a pattern or a gap. Link the findings it rests on. The studio checks that it draws on two or more papers.

What the studio checks for you

Each concept and each synthesis statement carries a plain-language status, worked out by formulas from your findings and appraisals. The labels begin like this, then say in words what to do next.

Gap status, per concept

• ⚪ Empty: no findings linked yet: a candidate gap, if your search was thorough.
• 🟡 Thin: findings from only one or two papers.
• 🟠 Weak evidence: three or more papers, but none appraised Strong.
• 🟢 Covered: three or more papers, at least one appraised Strong.

Agreement, per concept

• — Too few to judge: findings from fewer than two papers.
• ✅ Consistent: the papers point the same way.
• ⚡ Contested or uncertain: the directions conflict, or at least one finding is null or mixed. A null result means uncertainty, not necessarily conflict, so read the findings.

Synthesis check, per statement

• ⚠️ One-paper summary: the statement rests on a single paper: it is still a summary.
• ✅ Synthesis: it draws on two or more papers, and says how many.

Your paper appraisals (Strong, Moderate or Weak) feed the gap meter, so three weak studies do not look settled. The thresholds (one to two papers is thin, at least one Strong paper to count as covered) are teaching heuristics, not a published standard, and the studio says so. Empty means empty in your matrix, not in the world: search again before you claim a gap.

The worked example

Fictional study

The worked example is the fictional literature behind the Brookfield thesis: instructor feedback, course persistence and first-generation students in online programmes. It has 8 papers of different designs, 7 concepts, 16 findings and 5 synthesis statements. The gap meter shows 3 concepts 🟢 Covered, 2 🟡 Thin, 1 🟠 Weak evidence (belonging: three papers, none Strong) and 1 ⚪ Empty: whether first-generation status moderates the feedback link. Four statements show ✅ Synthesis; one, on self-regulation, is deliberately left as ⚠️ One-paper summary so you can see the check work. Clearing the example takes a few minutes.

Method and sources

The studio follows Webster & Watson (2002) for the concept-centric review and the concept matrix, Torraco (2005) for writing integrative synthesis, and Sandberg & Alvesson (2011) on gap-spotting and problematisation, so a gap is argued rather than declared.

The method page sets out the difference between an author-by-author and a concept-by-concept review, how to read the gap meter, and how to turn a statement into a paragraph. Extract, Spot, Synthesise is GradSummit's shorthand, not a published method.

What the studio does not do

• It does not appraise papers for you. Record an appraisal from your own appraisal tool or checklist.
• It does not find gaps. It shows where your matrix is empty or thin; whether that is a real gap is your argument to make.
• It does not write your review. Statements are one-sentence claims you expand in your own words.
• It is not a reference manager. Keep your references in Zotero, EndNote or similar.

What you get

• A one-page PDF with your private link, sent by Gumroad straight after checkout. Click it, then Duplicate, and the studio is in your own Notion workspace, yours to keep.
• Simple mode: three steps, one small table each, with a plain instruction above every table. You can start in Notion for the first time today.
• The matrix grouped by concept, the gap meter, synthesis statements with their check, and papers by stage with their appraisal.
• Four export views that turn your evidence matrix, gap table, synthesis statements and papers into clean CSV tables for an appendix.
• A Start here page, a method guide with full references, and a worked fictional example you can clear in a few minutes.
• Works on Notion's Free plan. No charts, no paid features and no Notion AI needed.

Related guides and templates

• The synthesis matrix

  how to synthesise, not summarise

• My literature review is just a summary

  how to make it synthesis

• Lit Review Synthesizer

  a free tool to scaffold your synthesis

• How to find a research gap

  one you can actually defend

Other research studios

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• Scoping & Systematic Review Manager

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• Research Question Lab

  Free. Score each draft research question and revise the weakest part.