Soal SMA · Analisis · Kesulitan 3/5
Read the following passage and answer the question. A researcher claims that a new drug reduces recovery time from a cold. In a trial, patients taking the drug recovered in 5 days on average, while those taking a placebo recovered in 6 days. The difference was statistically significant. However, the trial only included 20 patients, and all were under 30 years old. Which of the following is the most appropriate criticism of the researcher's claim?
- A.The drug is not effective because the difference is only one day.
- B.The sample size is too small and not representative of all age groups.
- C.The placebo group should have received the drug after the trial.
- D.Recovery time is not a valid measure for cold treatment.
Kunci jawaban & pembahasan
Jawaban: The sample size is too small and not representative of all age groups.
The small sample and limited age range limit generalizability, making the claim weak for the broader population.
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