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CSAT (Suneung) essentials: original practice

Original practice on CSAT reporting, horizontal tangents, and reading for causation, plus a short quiz.

3 flashcards · Curated by Ada

Question 1: How are CSAT (Suneung) results reported, and how do universities use them?

Answer

As standards-based grades and percentiles, combined with school records and other admissions materials.

The CSAT does not publish one total score. Each section becomes a standards-based grade and a percentile, and universities weigh those results with school records.

Question 2: For f(x) = x^3 - 3x, at which x-values is the tangent line horizontal?

Answer

At x = -1 and x = 1.

The derivative is f'(x) = 3x^2 - 3. Setting it to zero gives x^2 = 1, so the slope is zero at x = -1 and x = 1.

Question 3: A passage says people who sleep longer earn higher scores, then concludes that sleep causes higher scores. What is the flaw?

Answer

It treats correlation as causation. Another factor may drive both.

The report shows only that the two measures move together. Without a controlled comparison, a third factor such as health or study habits could explain both.