Professor Sokolov conducted an experiment and found that younger people had significantly poorer sleep quality than older people. Based on the results, she can conclude that
A) sleep quality is related to age.
B) the sleep quality of any individual person can be reliably predicted by her or his age.
C) there is a causal relationship between participant age and sleep quality.
D) sleep quality declines with age.

Question

Quizplus · Accepted Answer

The experiment found a significant relationship between age and sleep quality, indicating that sleep quality is related to age. However, the experiment does not provide evidence for a causal relationship or the ability to reliably predict an individual's sleep quality based solely on their age. The statement "sleep quality declines with age" is also not necessarily supported by the experiment, as it only compared younger and older people without including middle-aged participants.

Professor Sokolov Conducted an Experiment and Found That Younger People