Should FixClarityPROFound in 2-4% of dissertations

Sentence Clarity: When Broken Grammar Makes Your Ideas Invisible

Flagged in 2-4% of sentences. A grammatically broken sentence doesn't just look unprofessional—it prevents your committee from evaluating your ideas.

FIX

Fix the broken grammar so the sentence conveys your intended meaning.

What This Issue Is

Sentence clarity issues go beyond simple typos or spelling errors. They're structural grammar problems that prevent the reader from understanding what you meant. Misplaced modifiers, subject-verb disagreement, dangling participles, and tangled syntax all fall into this category. Your committee can't evaluate an argument they can't parse.

These errors tend to emerge during revision, not during initial writing. You restructure a sentence, cut half of it, paste in a clause from another paragraph, and don't re-read the result. The sentence made sense in your head because you know what you meant to say. On the page, it's missing a verb, has a pronoun with no antecedent, or has a modifier attached to the wrong noun.

The most insidious clarity errors are the ones that are grammatically legal but semantically confusing. "The teacher who the student that the principal recommended evaluated the curriculum" is technically parsable, but no reader should have to diagram a sentence to understand your literature review. If a sentence requires more than one pass to understand, rewrite it—regardless of whether it's technically correct.

Why Your Committee Flags It

Committee members circle sentences with broken parallel structure or unclear grammar as confusing.

Why Students Get This Wrong

Students write convoluted sentences trying to sound scholarly. They add qualifiers, passive constructions, and embedded clauses, believing complexity signals intelligence.

Think of it this way

Read your sentence aloud. If you stumble, your reader will too. The clearest sign of understanding is the ability to explain simply. Simplify first, then add necessary complexity back.

Before & After Examples

Before

The researcher studied how the policy effects teachers and also impacting student performance in terms of outcomes.

After

The researcher studied how the policy affected teachers and influenced student performance outcomes.

Dangling modifier: "the data" didn't complete the survey. Add the actual agent.

Before

Having completed the survey, the data was analyzed using SPSS.

After

After participants completed the survey, the researcher analyzed the data using SPSS.

Triple-nested relative clauses make it impossible to track the sentence's main point.

Before

The program which was designed for students who were struggling in math that had been identified by their teachers was effective.

After

The program was designed for students struggling in math, as identified by their teachers. Results showed the program was effective.

Comma splice and run-on sentence split into two properly punctuated sentences.

Before

The researchers found significant differences between the groups, however, the effect size was small, suggesting that while statistically meaningful, practically the intervention may not warrant implementation.

After

The researchers found statistically significant differences between the groups. However, the small effect size suggests the intervention may not warrant implementation in practice.

Self-Check Checklist

Tap each item as you review your chapter.

Frequently Asked Questions

Complex sentences are long and convoluted but grammatically correct. Sentence clarity issues are grammatically broken—the syntax doesn't work. A complex sentence can be split for readability. A sentence with a clarity issue must be rewritten because the grammar is preventing meaning from getting through. Both need fixing, but for different reasons.
Grammarly catches many surface-level errors—comma splices, subject-verb disagreement, some misplaced modifiers. But it often misses the deeper clarity issues that confuse academic readers: ambiguous pronoun references, semantically confusing passive chains, and sentences where the logical structure doesn't match the grammatical structure. You need human-level reading comprehension to catch those.
Say the idea out loud in the simplest possible language. Then write down what you just said. The spoken version is almost always clearer because you naturally use simpler structures when talking. Use that spoken version as the starting point and refine it for academic tone without adding back the structural complexity that caused the original problem.
Committees don't penalize you for being a non-native speaker, but they do require that every sentence communicates clearly. This is about your reader being able to understand your ideas, not about perfection. Focus on the sentences your committee flags, work with your university's writing center, and consider a professional editor for your final draft. Many successful dissertations are written by non-native speakers.

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