Evidence in Text Practice Test

Sociologist Erin Wallace claims that in U.S. public high schools from 2005–2015, expanding access to Advanced Placement (AP) courses increased overall college enrollment primarily by changing peer norms: when more students take AP classes, college-going becomes a more widely shared expectation. Wallace argues the effect is strongest in schools where AP participation becomes common across social groups, not confined to a small elite. Which finding, if true, would most directly support Wallace’s claim?

Historian Daniel Ibarra claims that the rapid spread of printed political pamphlets in London between 1640 and 1642 significantly increased political polarization by exposing readers to increasingly one-sided arguments, rather than by increasing overall political participation. He argues that pamphlet content became more ideologically uniform within factions over this short period, leading readers to adopt more extreme positions. Which discovery would most strongly undermine Ibarra’s theory?