Soal SMA · Latihan campuran · Kesulitan 4/5
A company claims its new app improves students' grades. A study shows that students who used the app had higher grades, but those students also studied two extra hours daily. What is the main flaw in the company's claim?
- A.The sample size is too small to draw any conclusion.
- B.The study confuses correlation with causation due to a confounding variable.
- C.The app was only tested on university students.
- D.Grades are not a reliable measure of learning.
Kunci jawaban & pembahasan
Jawaban: The study confuses correlation with causation due to a confounding variable.
Extra study time is a confounding variable, so the app cannot be credited as the sole cause of higher grades.
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