SAT Reading & Writing · Inferences

The variation in effect size across different chains and subgroups most strongly suggests that ______

Studies of mandatory calorie labeling on restaurant menus have found that, on average, customers make only modest reductions in the calories they order after labels are introduced, though some restaurant chains and customer subgroups show larger effects than others. Which choice most logically completes the text?

The variation in effect size across different chains and subgroups most strongly suggests that ______

Answer and explanation

Answer: B: the impact of calorie information on ordering behavior may depend on factors that differ across settings and populations, instead of being a single fixed effect.

The passage's key detail, effect sizes vary by chain and subgroup instead of being uniform, points toward context-dependent factors shaping how much labeling matters, which is B. A contradicts the passage's own report of modest but real average reductions. C directly contradicts the passage's explicit statement of variation across chains. D invents an explanation about literacy that the passage never raises.

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