Soal SMA · Analisis · Kesulitan 3/5
Read the following passage and answer the question. In a study on the effects of sleep on memory, participants were divided into two groups: one group slept for 8 hours, while the other group was sleep-deprived. Both groups were then tested on a memory task. The sleep-deprived group performed significantly worse. However, the study also found that the sleep-deprived group had higher levels of stress before the test. Which of the following is the most appropriate conclusion from this study?
- A.Sleep deprivation directly causes memory impairment.
- B.Stress may be a confounding variable in the relationship between sleep deprivation and memory performance.
- C.Sleep deprivation has no effect on memory.
- D.Memory performance is solely determined by sleep duration.
Kunci jawaban & pembahasan
Jawaban: Stress may be a confounding variable in the relationship between sleep deprivation and memory performance.
The presence of higher stress levels in the sleep-deprived group suggests that stress could confound the relationship between sleep deprivation and memory performance.
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