Professor Izadi is interested in determining the association between sleep and cognitive performance. He surveyed his students about the number of hours they slept the night before an exam and then correlated these scores with their test grades. He found a +.81 correlation between these two variables. What does this result mean?
A. There is a high negative correlation between hours of sleep and exam performance.
B. There is a high positive correlation between hours of sleep and exam performance.
C. There is a low positive correlation between hours of sleep and exam performance.
D. There is a low negative correlation between hours of sleep and exam performance.
Answer: B
You might also like to view...
As understood today, intelligence refers to one, universal standard of skills and abilities which can be assessed equally in any context or environment
a. True b. False Indicate whether the statement is true or false
What two factors does the ecological approach? (Select all that apply)
a. A framework for the determinants of health b. Used to refer to inanimate, mechanical operations c. Focus on boundaries of subsystems within a system and the equilibrium within the system d. Why people behave a certain way that impacts their health status e. None of the above
All of the following are considered part of the medical model of explaining psychopathology except ____
a. ?cognitive distortions b. ?having an imbalance of humors in the body c. ?neurobiological factors d. ?genetic influences
In the planned town of Seaside, what architectural and town design features seem to promote sense of community?
a. corner convenience stores, central mailboxes b. wide avenues with multiple lanes for traffic c. front porches, walkways, limited auto access d. high-rise luxury apartment buildings