To calculate a z-score by hand we need two things, the mean for the population and the population ______.
A. standard distribution
B. standard deviation
C. standard population
D. population sample
Answer: B
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A researcher who has found that caffeine consumption has a greater effect on behavior in hot weather than in cold weather has detected a(n)
a. variable effect. b. interaction effect. c. control effect. d. placebo effect.
In one study, groups of subjects discuss the punishment appropriate for "Johnny Rocco," a juvenile delinquent. In this experiment, subjects LEAST liked a confederate when he played the role of a person who ____
a. agreed with the group ("mode") b. disagreed with the group ("deviant") c. originally agreed and then came to disagree with the group ("lost soul") d. disagreed and then came to agree with the group ("slider")
How does caffeine affect human task performance?
a. It increases performance. b. It decreases performance. c. It increases performance in some areas and decreases it in others. d. Caffeine does not affect performance.
Jamaal is often so busy that he rarely enjoys what scientists refer to as the pleasant life. What among the following is the best option that you could recommend Jamaal do to begin to savor his life experiences?
A. Jamaal likely needs to work better on his time management skills. B. Jamaal likely needs to avoid interruptions and diversions when he is experiencing something pleasant, such as family time or a walk in nature. C. Jamaal likely needs to stop being pessimistic and develop a newer, more positive mindset so that he can begin to enjoy things in life. D. Jamaal likely needs to allocate more time toward figuring out what his interests are and what he truly likes so that he can experience joy in those activities.