Soal SMA · Soal cerita · Kesulitan 4/5
A student wants to determine if listening to music while studying improves test performance. She studies with music for one week and without music for another week, then takes tests. She finds no difference. What is a major flaw in her experiment?
- A.She did not randomly assign the order of conditions.
- B.She used different tests each week.
- C.She did not control the type of music.
- D.She did not study enough.
Kunci jawaban & pembahasan
Jawaban: She used different tests each week.
If the tests differed in difficulty, that could mask any effect of music, making the comparison invalid.
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