Set 3: Words in Context (Advanced)

Explanation

Answer: A

PASSAGE

The study was compromised by selection bias, which ______ the results effectively rendering the conclusions invalid.

Which choice completes the text with the most logical and precise word or phrase?

A. skewed✓ Correct

B. clarified

C. supported

D. verified

Detailed Explanation

Selection bias distorts results. 'Skewed' means to make biased or distorted in a way that is regarded as inaccurate, unfair, or misleading.

Key Evidence:

• "compromised by selection bias"

• "rendering conclusions invalid"

Why others are wrong: B (Clarified means made clear.), C (Supported means upheld.), D (Verified means proven.).