2.4 Evaluating Relevance, Economy, and Sentence Combining
Key Takeaways
- Relevance questions require evaluating whether a proposed sentence reinforces the author's primary purpose or introduces thematic drift and unnecessary digression.
- Sentence combining enhances syntactic maturity and conciseness through coordination, subordination, appositive phrases, and participial constructions.
- When combining sentences, the resulting structure must maintain correct grammatical relationships without introducing dangling modifiers, misplaced modifiers, or comma splices.
- Subordination must accurately reflect emphasis: the core assertion belongs in the independent clause, while background or qualifying information belongs in dependent clauses.
- Economy in writing involves eliminating verbal clutter, empty filler phrases, and nominalizations while preserving essential factual nuances.
Evaluating Relevance, Economy, and Sentence Combining
On the HiSET Language Arts – Writing subtest, writing proficiency is evaluated not only through error detection, but also through rhetorical judgment. The test assesses whether you can determine what content belongs in a passage (evaluating relevance) and how to merge fragmented, repetitive statements into fluid, sophisticated sentences (sentence combining and economy).
Together, relevance and combining items account for a significant portion of the Organization of Ideas domain. Mastering these concepts ensures that your writing—and the passages you edit on the exam—remains focused, concise, and stylistically mature.
1. Evaluating Relevance: Keep, Add, or Delete?
HiSET relevance questions ask whether an author should add a new sentence, delete an existing sentence, or keep a sentence as written. These questions follow a standardized format:
- "The author is considering deleting Sentence [X]. Should the sentence be kept or deleted?"
- "Which sentence, if added at this point, would best support the main argument of the paragraph?"
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| RELEVANCE DECISION FRAMEWORK |
| |
| [ PROPOSED SENTENCE ] |
| | |
| v |
| Does the sentence directly substantiate the specific claim |
| of the current paragraph and fit the author's purpose? |
| | |
| +------------------+------------------+ |
| | | |
| [YES] [NO] |
| | | |
| v v |
| [ KEEP / ADD ] [ DELETE ] |
| - Provides concrete data/evidence - Introduces off-topic trivia |
| - Explains a technical mechanism - Shifts focus to tangential topic |
| - Clarifies a key term in context - Repeats previously stated facts |
| - Establishes a necessary bridge - Expresses personal bias / irrelevant opinion |
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The Three Most Common Irrelevant Distractors
- Fascinating Trivia: A detail that is historically interesting or scientifically true, but unrelated to the specific argument being made (e.g., in an essay about electric vehicle efficiency, adding a sentence about how Henry Ford's wife preferred driving early electric cars in 1914).
- Thematic Overshoot: A sentence that addresses the general topic (e.g., "climate change"), but addresses an entirely different subtopic than the paragraph (e.g., discussing polar bear migration in a paragraph focused strictly on agricultural crop droughts in the American Midwest).
- Redundant Restatement: A sentence that rephrases what was stated two lines earlier without offering new insight, evidence, or progression.
2. Sentence Combining Mastery: Five Powerful Techniques
Choppy, short sentences make writing feel repetitive and disjointed. Sentence combining allows writers to express complex relationships concisely. On the HiSET, the correct combined sentence is usually the one that maximizes conciseness and logical clarity while maintaining grammatical accuracy.
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| FIVE SENTENCE-COMBINING TECHNIQUES |
| |
| 1. SUBORDINATION --> Connects unequal ideas using dependent conjunctions |
| (because, although, since, whereas, while). |
| 2. COORDINATION --> Connects equal, independent ideas using FANBOYS |
| (for, and, nor, but, or, yet, so) or semicolons. |
| 3. APPOSITIVE PHRASES --> Renames a preceding noun with a concise descriptive noun |
| phrase enclosed in commas. |
| 4. PARTICIPIAL PHRASES --> Uses present (-ing) or past (-ed/-en) verbs as modifiers |
| to streamline actions. |
| 5. RELATIVE CLAUSES --> Uses relative pronouns (who, which, that) to integrate |
| descriptive clauses smoothly. |
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Combining Transformation Reference Table
| Technique | Separate / Choppy Sentences | Sophisticated Combined Sentence | Rhetorical Advantage |
|---|---|---|---|
| Subordination | "The factory updated its ventilation system. Workplace respiratory complaints dropped by 60%." | "After the factory updated its ventilation system, workplace respiratory complaints dropped by 60%." | Establishes a clear time/cause relationship; emphasizes the health outcome as the main clause. |
| Appositive Phrase | "Dr. Maya Lin is a leading civil engineer. She designed the municipal stormwater reclamation basin." | "Dr. Maya Lin, a leading civil engineer, designed the municipal stormwater reclamation basin." | Eliminates the repetitive subject-verb construction ("Dr. Maya Lin is... She designed..."). |
| Participial Phrase | "The city council reviewed the budgetary audit. They voted to allocate surplus funds to public parks." | "Reviewing the budgetary audit, the city council voted to allocate surplus funds to public parks." | Converts the initial action into a fluid modifying phrase that sets up the primary decision. |
| Relative Clause | "The conservation initiative protects coastal estuaries. These estuaries serve as critical nurseries for juvenile fish." | "The conservation initiative protects coastal estuaries that serve as critical nurseries for juvenile fish." | Removes redundant demonstrative pronouns and binds the description directly to the noun. |
| Compound Predicate | "The researchers collected weekly water samples. They also analyzed microbial contamination levels." | "The researchers collected weekly water samples and analyzed microbial contamination levels." | Combines two actions under a single shared subject without repeating "They also." |
3. Sentence Combining Pitfalls to Avoid
When evaluating combined sentence choices on the HiSET, look out for these four frequent error types:
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| SENTENCE COMBINING PITFALL MATRIX |
| |
| [PITFALL 1: DANGLING MODIFIER] |
| * "Operating at peak efficiency, fuel consumption was minimized by the turbine." |
| (ERROR: The fuel consumption was not operating at peak efficiency; the turbine was!) |
| |
| [PITFALL 2: COMMA SPLICE / RUN-ON] |
| * "The laboratory synthesized the alloy, it exhibited remarkable heat resistance." |
| (ERROR: Two independent clauses joined only by a comma.) |
| |
| [PITFALL 3: SUBORDINATION REVERSAL / FAULTY EMPHASIS] |
| * "Although penicillin saved millions of lives, Alexander Fleming discovered it." |
| (ERROR: Subordinates the monumental historical impact while making discovery the main) |
| |
| [PITFALL 4: LOSS OF CRITICAL MEANING / FACT DISTORTION] |
| * Merging clauses in a way that implies an unproven causal link or drops crucial data.|
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4. Economy and Eliminating Verbal Clutter
Economy in writing means communicating an idea with the fewest words necessary without sacrificing precision or nuance. On the HiSET, wordy sentences are frequently disguised with inflated, pseudo-academic jargon.
Pruning Wordy Expressions
| Wordy / Inflated Expression | Streamlined Alternative | Underlying Flaw |
|---|---|---|
| due to the fact that | because / since | Wordy filler phrase |
| at this present point in time | now / currently | Redundant temporal padding |
| in the event that | if | Unnecessary circumlocution |
| conducted an investigation into | investigated | Weak nominalization (noun replacing strong verb) |
| reached a final consensus of opinion | agreed / reached consensus | Redundant tautology (consensus already implies shared opinion) |
| for the purpose of providing assistance to | to assist / to help | Inflated prepositional phrase |
Read the draft paragraph below: [1] Comprehensive school breakfast initiatives have proven instrumental in bolstering student academic achievement across low-income school districts. [2] Quantitative studies show that students who regularly consume balanced morning meals demonstrate significantly higher standardized mathematics scores and improved classroom attentiveness. [3] Furthermore, participating campuses report a noticeable decline in morning tardiness and disciplinary infractions. [4] The school cafeteria was completely remodeled in 2018 with modern stainless steel appliances and energy-efficient lighting fixtures. [5] Consequently, expanding access to universal morning nutrition yields substantial educational and behavioral dividends. The author is considering deleting Sentence [4]. Should Sentence [4] be kept or deleted?
Read the three draft sentences below: [1] Electric vehicles produce zero direct tailpipe emissions. [2] Their widespread adoption can substantially decrease urban smog and respiratory illnesses. [3] The regional electrical grid must transition to renewable energy sources to maximize their overall environmental benefits. Which of the following choices most effectively and concisely combines these three sentences into a single, grammatically correct sentence without distorting the original meaning?
Read the draft paragraph below: [1] Implementing structured telecommuting policies enables corporations to significantly reduce commercial facility overhead costs. [2] When employees work remotely several days per week, organizations require substantially less physical office square footage and consume less electricity for daily operations. [3] ________________________________________. [4] As a result, businesses can redirect substantial real estate savings into employee professional development and technological innovation. Which of the following sentences, if inserted in blank [3], would provide the most effective and relevant empirical supporting evidence for the paragraph's claim?