Soal SMA · Analisis · Kesulitan 3/5
A recent study found that students who participated in a peer tutoring program improved their grades significantly more than those who did not. However, the study also noted that participants were selected based on their high motivation to join the program. Which of the following best describes the main weakness of the study's conclusion?
- A.The study did not use a control group.
- B.The sample size was too small to be reliable.
- C.The results may be due to self-selection bias rather than the program itself.
- D.The grades were not measured objectively.
Kunci jawaban & pembahasan
Jawaban: The results may be due to self-selection bias rather than the program itself.
Because participants were selected based on high motivation, they may have improved regardless of the program, indicating self-selection bias.
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