A researcher is examining whether the amount of time newborns can sleep without being disturbed is related to parental stress. The researcher asked 30 parents to report the longest amount of time in number of minutes their newborn child has been able to sleep without waking up. Then the parents were asked to rate their stress levels.
The researcher find a correlation of -.56. What does this mean?
A) the result is significant. The data suggest that parents who are more stressed have newborns that can sleep longer.
B) The result is significant. The data suggests that parents who are more stressed have newborns that sleep for shorter time.
C) The result is not significant. There is no evidence from this sample that suggests that parental stress and newborn sleep duration are related.
D) The result is significant. Parental stress causes newborns to sleep less.

Question

Quizplus · Accepted Answer

The negative correlation coefficient (-.56) indicates that as parental stress levels increase, the amount of time their newborn can sleep without waking up decreases. Therefore, the data suggests that parents who are more stressed have newborns that sleep for shorter periods of time.

A Researcher Is Examining Whether the Amount of Time Newborns