9.2 Supporting Ideas, Explicit Details, and Targeted Information Retrieval

9.2 Supporting Ideas, Explicit Details, and Targeted Information Retrieval

Quick Summary: Supporting Idea (Explicit Detail) questions are one of the official Reading Comprehension skill categories; GMAC does not publish a fixed share for them. Unlike Main Idea questions, which test macroscopic synthesis, detail questions evaluate your microscopic textual precision. The secret to mastering explicit detail is the Locational Reading Framework: you must never answer from vague memory. Instead, extract unique 'lead words' from the question stem, navigate directly to the target paragraph using your Active Reading Roadmap, inspect the Three-Sentence Context Window, and match the author's meaning against sophisticated paraphrases while rigorously eliminating 'Verbatim Seduction' distractor traps.

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The Anatomy of Supporting Idea Questions

Supporting Idea questions evaluate your ability to locate, understand, and verify explicit factual claims made in the passage. In GMAC psychometrics, detail questions are strictly constrained: every correct answer must be directly proven by the text itself.

Common Question Stems

• According to the passage, which of the following is true regarding [Topic X]?
• The author mentions which of the following as a reason for [Phenomenon Y]?
• The passage explicitly states that [Entity Z] experienced which of the following outcomes?
• According to the text, [Process W] differs from [Process V] in that [Process W]...
• The author refers to [Specific Study / Term] in order to indicate that...

The Fundamental Law of Explicit Details

Unlike Critical Reasoning or Inference questions, where unstated logical deductions are required, Supporting Idea questions require zero speculation. If an answer choice cannot be mapped directly to a specific sentence in the text, it is incorrect. Your scratchpad roadmap exists so you can find that sentence in five seconds rather than re-reading the entire passage from scratch.

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The 4-Step Locational Retrieval System

When a detail question appears on screen, execute the following four-step protocol:

┌─────────────────────────────────────────────────────────────────────────────┐
│                     THE 4-STEP LOCATIONAL RETRIEVAL SYSTEM                  │
├─────────────────────────────────────────────────────────────────────────────┤
│  1. LEAD-WORD EXTRACTION: Isolate 1–2 distinctive anchor terms from stem.   │
│  2. ROADMAP TRIANGULATION: Use scratchpad roadmap to locate target paragraph│
│  3. THREE-SENTENCE WINDOW: Read [Sentence Before] + [Anchor] + [After].     │
│  4. PRE-PHRASE & MATCH: Translate meaning into own words; hunt paraphrase.  │
└─────────────────────────────────────────────────────────────────────────────┘

Step 1: Lead-Word Extraction

Examine the question stem and identify high-value anchor words. The best lead words are:

• Proper Nouns: Capitalized names of researchers, geographic locations, historical acts, or institutions (e.g., Pemberton, Enceladus, Lost City).
• Distinctive Technical Terms: Unique jargon, chemical compounds, or specialized concepts (e.g., silica nanoparticles, sunset provisions, handloom weaving).
• Specific Chronological Markers: Dates, centuries, or time horizons (e.g., 1820s, five to seven years).

Avoid weak lead words: General terms that appear throughout the entire passage (such as investors, market, passengers, or cells) are useless for locational scanning.

Step 2: Roadmap Triangulation

Do not start reading from line 1! Look at your active reading scratchpad roadmap. If your roadmap notes that Paragraph 1 discusses theoretical benefits, Paragraph 2 discusses longitudinal valuation data, and Paragraph 3 discusses sunset clauses, and the question asks about valuation premiums after five years, you go immediately and exclusively to Paragraph 2.

Step 3: The Three-Sentence Context Rule

Once your eyes land on the lead word, do not read only that single line. Test-makers frequently place the critical qualifying clause, causal explanation, or exception in the sentence immediately preceding or following the anchor sentence.

$\text{Target Context} = [\text{Sentence } n-1] + [\text{Anchor Sentence } n] + [\text{Sentence } n+1]$

Step 4: Strict Pre-Phrasing

Before looking at the five answer options, summarize the passage's explicit answer in your own words. Looking at answer choices before establishing the factual ground truth invites cognitive bias, allowing convincing distractors to mislead you.

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Paraphrasing vs. Verbatim Traps

The central intellectual hurdle in Supporting Idea questions is understanding how the GMAT tests comprehension: The GMAT tests meaning, not spelling.

The Art of the GMAT Paraphrase

Correct answer choices almost never replicate the exact words of the passage. Instead, GMAC employs rigorous semantic transformations:

The 'Verbatim Seduction' Distractor Trap

Because correct answers are paraphrased, test-makers use verbatim language from the passage to build tempting distractor traps. Weak test-takers search for choices that 'look familiar'. When they see an option containing three or four exact words from line 14, they pick it—unaware that the test-maker has:

1. Attached those words to the wrong subject,
2. Swapped the cause and effect, or
3. Answering a different question than the one asked.

Rule of Thumb: If an answer choice repeats five consecutive complex words from the text verbatim, treat it with extreme suspicion until you verify that the logical relationship has not been altered.

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The Complete Taxonomy of Detail Traps

When evaluating choices on Supporting Idea questions, actively screen for the five classic distractor archetypes:

1. The Direction / Causal Inversion Trap: Reverses the relationship established by the author. If the text says A stimulated B, the trap asserts that B was the catalyst for A, or that A hindered B.
2. The Qualifier & Degree Inflation Trap: Elevates a qualified, moderate statement into an absolute claim. The passage states that an effect "often occurs" or "is partially attributed to", while the trap claims it "inevitably occurs" or "is exclusively determined by".
3. The Relocated Detail (Right Fact, Wrong Query) Trap: Cites a completely accurate, verbatim statement from Paragraph 1 to answer a question that specifically targets a phenomenon explained in Paragraph 3.
4. The False Comparison Trap: The passage mentions Concept X and Concept Y independently; the trap invents an unstated comparative relationship (e.g., claiming X is more efficient than Y when no comparison was drawn).
5. The Plausible Extraneous Truth Trap: An answer choice that is undeniably true in the real world (e.g., "monopolies tend to generate economic deadweight loss"), but which is nowhere stated or supported within the boundaries of the passage.

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Complete Sample Passage & Locational Walkthrough

Study the following passage from the Social Science & History domain:

Historians of the British Industrial Revolution long maintained that the mechanization of textile spinning during the late eighteenth century immediately depressed the real earnings and standard of living of rural artisan households. According to this traditional orthodoxy, the rapid adoption of steam-driven spinning mules concentrated production in urban mills, abruptly displacing traditional hand-spinners and triggering widespread domestic immiseration.

However, revisionist economic historian Clara Pemberton challenges this uniform declension narrative by examining wage ledgers from northern English parish vestries between 1780 and 1815. Pemberton demonstrates that the initial expansion of mechanized spinning created an acute, unexpected bottleneck in downstream weaving, which remained unmechanized until the commercial perfection of the power loom in the 1820s. Because mechanized mills produced an unprecedented abundance of cheap yarn, demand for rural domestic handloom weavers surged exponentially. Far from suffering immediate impoverishment, handloom weaving families experienced a temporary 'golden age' of heightened piece-rates and rising household purchasing power that persisted for nearly three decades.

Pemberton further reveals that this prosperity was distributed unevenly across domestic units. Households with multiple male adolescent weavers captured substantial economic rents, whereas female spinners within those same households indeed suffered drastic reductions in independent income as spinning migrated to centralized factories. Consequently, overall household income frequently rose even as internal gender wage disparities widened dramatically. The catastrophic collapse of domestic weaving livelihoods did not occur until the 1830s, when the widespread adoption of steam-powered weaving machinery finally rendered artisanal handlooms commercially obsolete.

Locational Retrieval Breakdown Table