Research Methodology - 5 Beginner Writing Mistakes to Avoid

TL;DR

Replace vague descriptions with concrete, reproducible details such as equipment make/model and exact experimental settings.

Briefing Cornell Notes

Briefing

Materials and methods sections sink or swim on clarity: vague descriptions and inconsistent writing conventions make it harder for reviewers to trust the work and harder for other researchers to reproduce it. The most damaging error highlighted is using vague language—especially when describing equipment and experimental settings. A sample line like “The measurements were performed on the imaging unit at different settings” gives readers almost nothing to verify or replicate: it names only an “imaging unit,” omits the make and model, and never specifies what “different settings” actually were. The fix is straightforward but essential—add the missing technical details so the equipment and the exact settings are unambiguous. That level of specificity turns a non-reproducible statement into a reproducible method.

Writing tense and voice also matter. Because the methods describe work that already happened, the materials and methods section should generally be written in past tense. The transcript contrasts present-tense wording with past-tense wording to show how the latter better matches the idea of reporting completed procedures. Voice choice—active versus passive—depends on journal requirements and stylistic preference. Passive voice is often used in methods because it sounds more formal and keeps attention on the procedure itself rather than the person who performed it. At the same time, mixing active and passive constructions can improve readability and keep the section from feeling monotonous.

Conciseness and readability are the next pressure points. Long method names can overwhelm readers, so acronyms and abbreviations are recommended, but only if they’re defined at first use. The standard practice described is to write the full term first, followed by the acronym in parentheses, and then use the short form throughout the rest of the section. Finally, the methods section can become a “manual” when it’s too text-heavy—particularly for complex procedures. Instead of long paragraphs, the transcript advises using formatting tools that help readers follow steps: bullet points and numbered lists can break down processes, and flow diagrams can visualize workflows. However, it cautions writers to check journal rules before using these elements, since not all venues allow certain formatting.

Taken together, the guidance emphasizes a single goal: make the methods section precise enough for evaluation and detailed enough for replication, while still readable through sensible tense, voice, abbreviation practices, and structured presentation.

Cornell Notes

A strong materials and methods section must be specific, consistent, and easy to follow. Vague wording—like naming an “imaging unit” without its make/model or listing “different settings” without specifying them—undermines reproducibility and can lead to rejection. Methods should typically be written in past tense because they report completed work, and active vs. passive voice should follow journal requirements (passive often reads more formal). To keep text manageable, define acronyms and abbreviations at first mention and reuse the short forms later. For complex procedures, use formatting variety such as bullet points, numbered lists, or flow diagrams, but confirm the journal allows them.

Why is vague language in materials and methods risky, and what details are required to make a procedure reproducible?

Vague language blocks replication and frustrates reviewers because key experimental parameters are missing. For example, “The measurements were performed on the imaging unit at different settings” fails to identify the imaging unit’s make and model and never states what the “different settings” actually were. A reproducible rewrite includes the exact equipment identification and the precise settings used for the measurements.

What tense should be used in the materials and methods section, and how does tense affect correctness?

Materials and methods should generally be written in past tense because the section reports actions that already occurred. The transcript contrasts present-tense phrasing with past-tense phrasing, emphasizing that past tense aligns with completed procedures and journal expectations for reporting results of prior work.

How should writers decide between active and passive voice in methods?

Voice choice should follow journal requirements and the writer’s preference. Passive voice is commonly used in methods because it sounds formal and keeps focus on the procedure rather than the person performing it. The guidance also notes that mixing active and passive voice can make the text more engaging while still maintaining clarity.

How can acronyms and abbreviations improve a methods section without harming clarity?

Acronyms and abbreviations can reduce clutter, but they must be defined at first occurrence. The transcript’s example approach is to write the full term—such as “Digital Breast Tomosynthesis”—followed by the abbreviation “DBT” in parentheses at first use, then use “DBT” thereafter.

What formatting strategies help prevent the methods section from reading like a manual, and what constraint must be checked?

When procedures are complex, long paragraphs can feel dry and tedious. Using bullet points and numbered lists can make steps easier to scan, and flow diagrams can illustrate processes visually. Writers should check journal requirements first to confirm whether such formatting is allowed.

Review Questions

What specific information is missing from the vague example about imaging measurements, and what would you add to make it reproducible?
How would you rewrite a methods sentence to ensure it uses past tense, and why is that tense appropriate?
When using acronyms in a methods section, what rule governs when and how the abbreviation should be introduced?

Key Points

1
Replace vague descriptions with concrete, reproducible details such as equipment make/model and exact experimental settings.
2
Write materials and methods in past tense because the procedures have already been completed.
3
Follow journal requirements when choosing active vs. passive voice; passive often reads more formal in methods.
4
Use acronyms and abbreviations to reduce length, but define each one at first occurrence and then reuse the short form.
5
Avoid dense, manual-like text for complex procedures by using bullet points, numbered lists, or flow diagrams.
6
Check journal formatting rules before using bullets, numbering, or diagrams to prevent submission issues.

Highlights

A single vague line—naming an “imaging unit” and “different settings” without specifics—makes replication impossible and can trigger reviewer rejection.

Past tense is the default for materials and methods because it reports completed work.

Acronyms should be defined at first mention (e.g., “Digital Breast Tomosynthesis” → DBT) before using the short form.

Formatting variety—bullets, numbering, and flow diagrams—can make complex methods readable, but journal rules must be followed.

Topics

Materials and Methods
Reproducibility
Writing Tense
Active vs Passive Voice
Acronyms and Abbreviations