Soal SMA · Latihan campuran · Kesulitan 4/5
A study concludes: 'Students who eat breakfast score higher on tests.' Which additional information would most weaken this conclusion?
- A.Breakfast eaters also tend to come from families with higher incomes and more educational resources.
- B.Some students skip breakfast and still score high.
- C.Breakfast is considered the most important meal of the day.
- D.Test scores are measured on a standardized scale.
Kunci jawaban & pembahasan
Jawaban: Breakfast eaters also tend to come from families with higher incomes and more educational resources.
If breakfast eaters differ systematically in income and resources, those factors could explain the higher scores, weakening the causal claim.
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