Passage Summary: Researchers gave two groups the exact same story but changed the titles; the groups ended up with totally different takes on what they read.

Reasoning: Students reading identical text with different headlines interpreted or remembered the content in significantly different ways.

Analysis: The stimulus describes a controlled experiment where the only variable changed was the headline. Because the students' responses were consistent within their groups but varied wildly between groups, we can reasonably infer that the headline was the cause of the difference. The information strongly supports the idea that a headline can frame or bias a reader's interpretation of the subsequent text. Look for an answer choice that reflects this power of 'framing' or 'initial impressions' on information processing.