Soal SMA · Analisis · Kesulitan 3/5
Read the following passage and answer the question. A study found that students who eat breakfast get better grades. The researchers concluded that eating breakfast improves academic performance. However, a critic argued that students from higher-income families are more likely to eat breakfast and also have more educational resources. Which of the following is the critic's main point?
- A.Breakfast is not important for health.
- B.Higher-income families provide better breakfasts.
- C.Socioeconomic status is a confounding variable.
- D.Grades are not affected by breakfast.
Kunci jawaban & pembahasan
Jawaban: Socioeconomic status is a confounding variable.
The critic suggests that income (socioeconomic status) affects both breakfast consumption and grades, confounding the relationship.
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