Which factor is proposed to explain the Flynn effect?
ADeclining school years
BMore efficient education
CPoorer childhood nutrition
DRarer test practice
Answer & Solution
Correct answer: B. More efficient education
1. Recall the fact: A rise in the efficiency of education is one proposed explanation.
2. The option "More efficient education" matches it.
3. Why the others fail: The others would lower, not raise, scores.
_Source: Wikipedia, "Flynn effect" (CC BY-SA, rev 1375564293), section "Lead section"_
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