Sociologist Erin Wallace claims that in U.S. public high schools from 2005–2015, expanding Advanced Placement (AP) access increased college enrollment primarily by shifting peer norms toward widespread college expectations, with strongest effects when AP participation spans social groups. To support this claim, evidence would need to link broadened AP enrollment across demographics to higher college-going rates and explicit norm changes. Choice B directly supports Wallace’s claim by showing college enrollment rose most in schools with AP broadening across cliques, accompanied by stronger 'college-for-all' norms, matching the mechanism and timeframe. This emphasizes norm shifts over mere participation increases. Choice A focuses on exam scores among top students, not enrollment or norms, while Choice C discusses tuition subsidies unrelated to AP. Choice D correlates AP classes with enrollment but doesn't address norm changes or social breadth. In sociological evidence, verify support by ensuring findings address the claimed mechanism, like peer norms, rather than just correlations.

Historian Daniel Ibarra claims that the spread of printed political pamphlets in London from 1640 to 1642 increased political polarization by exposing readers to increasingly one-sided arguments within factions, leading to more extreme positions, rather than by boosting overall participation. To undermine this theory, evidence would need to show that pamphlet exposure led to moderation of views or increased participation without polarization, directly contradicting the one-sided extremism mechanism. Choice C strongly undermines Ibarra’s theory by indicating that readers who engaged with multiple pamphlet factions moderated their views after comparing arguments, suggesting pamphlets reduced rather than increased polarization. This directly challenges the claim of escalating extremism through uniform content. Choice A notes increased print runs but specifies non-political content, which doesn't address political pamphlets' effects, while Choice B shows arrests for seditious speech, potentially supporting polarization without disproving it. Choice D highlights higher voter turnout, which aligns with increased participation but doesn't negate the polarization claim. When evaluating evidence that undermines a historical argument, look for findings that invert the predicted outcome, like moderation instead of extremism, rather than merely related trends.

The historian claims that the 1610-1630 piracy rise was driven mainly by demobilized sailors after a conflict ended, not by increased trade volume. To challenge this, we'd need evidence showing either that demobilized sailors weren't the main cause or that increased trade was the main cause. Choice A directly challenges the claim by showing trade doubled while naval forces stayed stable with low desertion—this suggests increased trade targets drove piracy, not an influx of unemployed sailors. Choice B mentions new hideouts but doesn't address the cause of increased piracy. Choice C discusses moral explanations from 1650, outside the relevant timeframe. Choice D shows unchanged piracy in a different region (eastern Mediterranean), not the western Mediterranean in question. To challenge a causal claim about what drove an increase, look for evidence supporting an alternative cause or contradicting the proposed cause.

The scholar argues that Morrison's water imagery symbolizes communal memory rather than personal purification, emphasized in collective settings like rivers and public baths. To support this, we'd need a quotation showing water connected to shared, collective memory. Choice B perfectly supports this: 'The river carried their names the way the elders did—passed along, repeated, and kept from disappearing' explicitly links water (river) to communal memory preservation across generations. Choice A shows water as personal transformation ('make me someone new'), supporting individual purification instead. Choice C denies symbolic meaning entirely ('not because it meant anything'). Choice D describes water as a private, individual experience. In literary analysis questions, match the symbolic interpretation to textual evidence that explicitly demonstrates that meaning in the claimed context.

The archaeologist hypothesizes this was a seasonal fishing camp based on small hearths and limited storage, not a permanent settlement. To undermine this, we'd need evidence of year-round occupation or permanent structures. Choice A strongly undermines the hypothesis by showing large, insulated dwellings with repaired floors (indicating permanent structures), multiple rebuild phases (suggesting long-term occupation), and year-round plant remains from different seasons (proving continuous occupation). Choice B supports the fishing camp idea with seasonal fish remains. Choice C shows fishing equipment, consistent with either interpretation. Choice D's driftwood use and limited fuel access actually supports temporary occupation. Archaeological evidence of permanent structures and year-round occupation directly contradicts claims of seasonal use.

Mehta's claim is that retrieval practice (quizzing) improves retention more than rereading specifically because it strengthens recall pathways rather than familiarity. To challenge this, we'd need evidence showing either that quizzing doesn't produce better recall, or that the benefit isn't due to strengthened recall pathways. Choice C directly challenges the claim by showing that quizzed and rereading groups have equal delayed recall (contradicting the superiority of quizzing for retention), while rereaders show faster recognition (suggesting they may have stronger familiarity pathways, contradicting Mehta's mechanism). Choice D would actually support Mehta's claim by showing quizzing's superiority. Choice A addresses confidence, not actual performance. When evaluating challenges to mechanistic claims, look for evidence that either disproves the outcome (equal performance) or contradicts the proposed mechanism (familiarity vs. recall pathways).

Armand's theory claims that employer-sponsored leisure clubs drove declining lodge membership between 1890-1910 by offering similar benefits with lower costs. To undermine this theory, we'd need evidence showing either that the timing doesn't match (clubs didn't expand when lodges declined) or that a different factor caused the decline. Choice A directly undermines the theory by showing that company leisure clubs expanded most rapidly after 1920, which is after the 1890-1910 period when lodge membership supposedly declined due to these clubs—if the clubs weren't prevalent during the decline, they couldn't have caused it. Choice C actually supports a competing explanation (rising fees) but doesn't directly contradict Armand's theory since both factors could contribute. Choice D shows coexistence of both memberships, which doesn't necessarily undermine the claim about declining lodge membership. In historical causation questions, pay close attention to chronology—causes must precede their supposed effects.

The researcher claims that diverse native flowering species in road medians reduce summer temperatures specifically through evapotranspiration (water release from plants), not shading, with strongest effects at midday. To support this, we'd need evidence showing that flowering medians produce measurable evapotranspiration and temperature reduction during peak heat hours. Choice B directly supports this by showing native flower medians have higher transpiration rates and larger temperature drops than equally shaded gravel medians—this isolates the evapotranspiration effect from shading since both have equal shade. Choice A addresses street trees (not median flowers) and doesn't isolate evapotranspiration from shading effects. Choice C only addresses driver preferences, not temperature mechanisms. Choice D shows no temperature change in rural towns, which actually contradicts the hypothesis. When evaluating support for a specific mechanism claim, look for evidence that isolates that mechanism from other possible causes.

Okoye contends that catch shares reduce overfishing mainly through increased peer monitoring (fishers observing and sanctioning each other), not through market price changes. To support this, we'd need evidence showing that peer monitoring mechanisms are active and effective after catch shares begin. Choice B directly supports this by showing that rule violations fall most in villages with the highest rates of inter-household visits—this suggests that communities with more social interaction (enabling peer monitoring) see the greatest compliance improvements. Choice A mentions price changes, which Okoye explicitly argues are not the main mechanism. Choice D addresses vessel size differences but doesn't connect to peer monitoring. Choice C is about a different region without catch shares, making it irrelevant to testing Okoye's claim. When evaluating support for social mechanism claims, look for evidence that the proposed social process (peer monitoring) correlates with the desired outcome (reduced violations).

Iqbal claims that in proportional-representation elections, higher youth turnout increases small party vote share because young voters prefer niche platforms. To undermine this claim, we'd need evidence showing that young voters don't actually prefer small parties more than older voters when they turn out. Choice B directly undermines the claim by showing that 18-24-year-olds prefer major parties at the same rate as older voters in high-turnout elections—this contradicts the core assumption that young voters are more willing to support niche platforms. Choice A shows stable party shares but doesn't specifically address youth preferences. Choice C identifies a different factor affecting small parties. Choice D actually supports a version of Iqbal's claim but in a different electoral system. When evaluating claims about demographic voting patterns, direct evidence about that demographic's actual preferences most effectively confirms or undermines the argument.