3.2 Locating Explicit Details, Supporting Evidence & Data
Key Takeaways
- Master targeted scanning techniques to locate explicit facts, dates, names, and statistics without reading line-by-line.
- Distinguish strictly between explicitly stated statements and unstated inferences or personal assumptions.
- Systematically solve EXPLICIT / NOT / EXCEPT questions using reverse verification against passage text.
- Recognize synonym substitution and restatement tricks used in correct answer choices on the ACET.
Locating Explicit Details, Supporting Evidence & Data
Explicit detail questions test your ability to retrieve specific facts, numerical figures, cause-and-effect relationships, or claims directly stated in the reading passage. Unlike inference items, detail questions do not require you to read between the lines. Instead, they demand literal accuracy, rapid scanning skills, and resistance to deceptive paraphrase traps.
1. Mechanics of High-Speed Scanning vs. Skimming
When tackling detail questions under time pressure on the ACET, reading the entire passage again from top to bottom is inefficient. You must deploy targeted scanning:
- Skimming: Reading rapidly to grasp the general layout, paragraph functions, and overall main idea.
- Scanning: Visually searching the text for specific anchor keywords (e.g., proper nouns, dates, scientific terms, or numbers) identified in the question stem.
The Keyword Indexing Technique
- Read the question stem first and isolate 1–2 distinctive anchor words (e.g., karakoa, outriggers, hardwood, 16th century).
- Move your eyes quickly across the passage in a zig-zag or S-pattern, searching exclusively for those anchor words or their direct synonyms.
- Once found, read the surrounding sentence (1 sentence before and 1 sentence after) to verify the exact factual context.
Time-Saving Scanning Tactics
- Peripheral Visual Anchor: Focus your gaze down the center of each column of text rather than moving your eyes strictly left to right. Allow your peripheral vision to pick up capitalized proper nouns (e.g., Francisco Combés) and numerical data (e.g., 12 knots, 1667).
- Structural Marking: Mentally mark where key categories of information live during your initial skim (e.g., Paragraph 1 = Ship Materials and Construction; Paragraph 2 = Velocity, Propulsion, and Historical Records).
Sample ACET Passage 2: History & Social Science
Passage 2
Prior to Spanish colonization, indigenous maritime trade across the Philippine archipelago relied heavily on the karakoa, a specialized warship and trading vessel engineered for high maneuverability in shallow island waters. Unlike European galleons of the 16th century, which featured deep keels and heavy oak framing, the karakoa possessed a double-outrigger design constructed primarily from lightweight vitex timbers (molave) and flexible bamboo. The hull was assembled using a plank-built technique, joined with wooden dowels (pasak) rather than iron nails, allowing the vessel to absorb heavy wave impact without structural fracturing.Historical accounts by early Spanish chroniclers, including Francisco Combés in 1667, note that a fully manned karakoa could achieve speeds exceeding 12 knots—nearly double the speed of contemporary European merchant ships. This velocity was attained through a dual-propulsion system: a large square sail woven from fiber palm (burí) combined with up to ninety oarsmen seated on elevated bamboo platforms mounted above the outriggers. Furthermore, the outriggers provided extraordinary lateral stability, enabling the karakoa to navigate treacherous reef passes and execute rapid pivot maneuvers during naval engagements. While colonial authorities eventually suppressed karakoa construction in favor of heavy cargo freighters, modern maritime archaeologists recognize these indigenous vessels as pinnacles of pre-colonial Austronesian naval engineering.
2. Paraphrase and Synonym Substitution
Correct answers to explicit detail questions rarely copy exact phrasing from the text. The ACET relies heavily on synonym substitution and sentence restructuring to test comprehension rather than simple visual matching.
Evidence Mapping Table
| Passage Statement (Original Text) | ACET Correct Choice (Paraphrased) | Common Distractor Trap |
|---|---|---|
| "joined with wooden dowels (pasak) rather than iron nails" | Built using timber pegs instead of metallic fasteners. | Claims the ship used iron nails imported from Europe. |
| "achieve speeds exceeding 12 knots—nearly double the speed of contemporary European merchant ships" | Moved significantly faster than 17th-century European commercial vessels. | States that European merchant ships reached speeds of 24 knots. |
| "elevated bamboo platforms mounted above the outriggers" | Oarsmen were positioned on raised structures over the side stabilizers. | Placed oarsmen inside the deep keel below the waterline. |
Distinguishing Stated Facts from Paraphrased Statements
- Direct Literal Paraphrase: Expresses the exact same factual proposition using alternative vocabulary (e.g., replacing vitex timbers with hardwood material).
- False Equivalency Trap: Takes two real details from different sentences and combines them inaccurately (e.g., claiming that the square sail was constructed from iron-reinforced molave timber).
- Scope Alteration Trap: Modifies a quantitative detail (e.g., changing speeds exceeding 12 knots to speeds exactly equal to 12 knots under all conditions).
3. Navigating Negative Detail Questions (EXCEPT / NOT / LEAST)
Questions that ask "Which of the following is NOT mentioned?" or "All of the following are characteristics of the karakoa EXCEPT:" require a systematic process of elimination:
- Recognize the Objective: Three options will be explicitly supported by the text; one option will either contradict the text or be entirely unmentioned.
- Use the True/False Method: Evaluate each choice against the text. Mark choices that are explicitly true with a checkmark. The single remaining choice that is false or absent is your correct answer.
- Beware of Partial Truths: A choice might use 90% true words from the passage but insert one incorrect detail (e.g., claiming the hull was joined with iron dowels).
4. Execution Workflow for Detail Verification
[1. Identify Question Keywords] ──► [2. Scan Text for Anchor Terms] ──► [3. Read 3-Sentence Context Window]
│
▼
[6. Select Verified Answer] ◄── [5. Confirm Paraphrase Equivalence] ◄── [4. Eliminate Distractors]
By practicing this methodical verification workflow, you eliminate careless errors and build the speed necessary to navigate the high-density reading section of the ACET.
According to Passage 2, what structural feature allowed the karakoa hull to absorb wave impact without fracturing?
According to Passage 2, all of the following contributed to the karakoa's speed and stability EXCEPT:
Based on the text, how did the speed of the karakoa compare to 17th-century European merchant vessels?