Information and Ideas · ~26% of Reading & Writing
75+ free practice questions, every answer explained.
Command of Evidence (Quantitative) pairs a short passage with a table or graph and asks which choice most effectively uses that data to complete or support a stated claim. No arithmetic beyond comparison is required — it is a reading question about a data display, not a maths question.
Read the title, the axis labels, the units and the column headers before you read a single answer choice; most wrong answers survive only because the reader assumed what the numbers measured. Then find the specific comparison the claim needs, locate exactly those cells or points, and check each choice against them.
Picking a choice that describes the data correctly but does not support the claim. Wrong answers here are usually true statements about the table — they simply answer a question nobody asked. The choice must be both accurate and relevant to the sentence it is completing.
A hospital compared average patient wait times in its emergency department before and after implementing a new triage software system:
| Before system (avg.) | 94 minutes |
|---|---|
| After system (avg.) | 61 minutes |
| Average patient satisfaction score before | 3.2/5 |
|---|---|
| Average patient satisfaction score after | 3.4/5 |
A hospital administrator claims that the new triage system substantially reduced wait times and substantially improved patient satisfaction.
Does the data support the administrator's claim?
Answer: B. Wait times dropped substantially (94 to 61 minutes), but satisfaction rose only slightly (3.2 to 3.4)—so while wait times improved substantially, satisfaction did not improve to the same degree, contradicting the claim that both improved substantially.
75+ questions across 9 drills. Each drill is answered as a set — you see every explanation at once, at the end.
10 Command of Evidence: Quantitative questions, easiest first, every answer explained.
Start drill 1 → Drill 210 Command of Evidence: Quantitative questions, easiest first, every answer explained.
Start drill 2 → Drill 310 Command of Evidence: Quantitative questions, easiest first, every answer explained.
Start drill 3 →Drills 4–9 continue from the end of drill 3 — each drill links to the next.
Reading comprehension proper: main ideas, stated details, evidence that supports or weakens a claim, and conclusions the text forces.
Command of Evidence (Quantitative) pairs a short passage with a table or graph and asks which choice most effectively uses that data to complete or support a stated claim. No arithmetic beyond comparison is required — it is a reading question about a data display, not a maths question.
Read the title, the axis labels, the units and the column headers before you read a single answer choice; most wrong answers survive only because the reader assumed what the numbers measured. Then find the specific comparison the claim needs, locate exactly those cells or points, and check each choice against them.
Command of Evidence: Quantitative sits in the Information and Ideas domain, which is ~26% of the Reading & Writing section — roughly 12–14 of its 54 questions. The College Board publishes weights by domain, not by individual skill, so an exact per-skill count is not something anyone can promise you.
No. Every question is original, written to the College Board's published Digital SAT Reading & Writing specification. No retired or copyrighted College Board material appears anywhere on this site.
75+ questions across 9 drills, all free, no account needed, every answer explained.