Should FixStructuralFound in 5-8% of dissertations

Single-Sentence Paragraphs: The Red Flag That Says "I Didn't Develop This Idea"

Found in 5-8% of dissertation chapters. Every single-sentence paragraph tells your committee you had a thought but didn't follow through on it.

FIX

Develop this paragraph with 3-5 sentences or merge with an adjacent paragraph.

What This Issue Is

A paragraph is a unit of thought. It makes a claim, supports it, and connects it to the next idea. A single sentence can't do all three. When your committee sees a one-sentence paragraph in your literature review or methodology, they read it as an idea you abandoned mid-thought — or worse, an idea you didn't understand well enough to develop.

Single-sentence paragraphs are common in journalism and blog writing, where short paragraphs improve readability on screens. But academic writing operates by different rules. A dissertation paragraph typically needs 3-5 sentences: a topic sentence, 1-3 supporting sentences with evidence, and a concluding or transitional sentence. Anything shorter looks like a fragment of a thought rather than a complete argument.

Most single-sentence paragraphs fall into two categories. The first is an orphaned topic sentence — you stated a claim but didn't provide the evidence. The second is a transitional sentence that should be the last sentence of the previous paragraph or the first sentence of the next one. In both cases, the fix isn't padding with filler; it's asking yourself whether the sentence needs development (add evidence) or relocation (merge with an adjacent paragraph).

Why Your Committee Flags It

One-sentence paragraphs signal incomplete thinking. Committees expect full development of ideas with evidence, explanation, and connection to broader arguments.

Before & After Examples

Before

The findings have important implications for policy.

After

The findings have important implications for policy. Educational leaders should consider these results when allocating resources. Professional development programs may need restructuring.

The single sentence is a topic sentence that needs supporting evidence and a connection to the broader argument.

Before

Teacher burnout has become a growing concern in K-12 education. [next paragraph begins]

After

Teacher burnout has become a growing concern in K-12 education, with 44% of teachers reporting that they feel "burned out" at least sometimes (Gallup, 2022). Contributing factors include increased workload, lack of administrative support, and emotional exhaustion from student behavioral issues (Maslach & Leiter, 2016). Understanding these factors is essential for developing targeted retention interventions.

Transitional single-sentence paragraphs should be merged with the section they introduce or the section they follow.

Before

The following section discusses the theoretical framework. [theoretical framework begins]

After

[End of previous section] ...which establishes the need for a theoretical lens that accounts for both individual and organizational factors. The theoretical framework for this study draws on two complementary theories.

A claim about implications must be followed by the actual implications.

Before

These findings have implications for practice. [next paragraph begins]

After

These findings have implications for practice at both the classroom and district levels. At the classroom level, teachers can implement differentiated scaffolding based on student readiness (Tomlinson, 2017). At the district level, administrators should consider reallocating professional development hours toward evidence-based collaboration models (DuFour & DuFour, 2013).

Self-Check Checklist

Tap each item as you review your chapter.

Frequently Asked Questions

Most dissertation committees expect paragraphs of 3-7 sentences. The ideal paragraph has a topic sentence (your claim), 1-3 supporting sentences (evidence and analysis), and a concluding or transitional sentence. Some style guides suggest 4-6 sentences as the target range. The exact number matters less than whether the paragraph fully develops its central idea.
In a dissertation, essentially never. Some academic genres (opinion pieces, editorials) occasionally use single-sentence paragraphs for emphasis, but dissertations follow a strict paragraph structure. If your committee sees a one-sentence paragraph, they'll flag it as underdeveloped regardless of your intent. The standard is too well established to deviate from.
Methodology chapters often produce single-sentence paragraphs because students list procedural steps without elaboration. For each step, add a rationale: why did you choose this approach? What does the methodological literature say about it? A sentence like "Data were collected through semi-structured interviews" becomes a full paragraph when you add the interview format, duration, recording method, and a citation justifying the approach.
It depends on the sentence's function. If it introduces a new idea, expand it with supporting evidence. If it's a transition ("The next section discusses...") or a concluding statement ("These findings align with..."), merge it with the adjacent paragraph. The test: does this sentence need its own evidence, or does it belong with existing evidence nearby?

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