Which of the following traits is linked to a host of health problems, including heart disease, high blood pressure, and obesity?
a. high neuroticism
b. high extraversion
c. high openness
d. high agreeableness
Answer: A
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Selective serotonin reuptake inhibitors and mood stabilizers such as lithium help control the of people with dramatic personality disorders
a. compulsions b. obsessions c. delusions d. impulsive aggressive problems
Which of the following is true regarding the attraction of smoking?
a. ?Most tobacco users begin smoking in their mid-20s as a way of feeling fully independent. b. ?Nicotine has the ability to stimulate the dopamine reward circuits of the brain and to produce a particularly unpleasant set of withdrawal symptoms. c. ?Young people who start smoking are usually trying to rebel and look “different” from their peers and family. d. ?Nicotine has the ability to increase alertness temporarily without any side effects.
A researcher investigates whether there is a relationship between hours of sleep and memory for photographs by having 40 people sleep in the laboratory and waking 20 of the participants after 4 hours of sleep and the others after 8 hours of sleep. After they are awakened, each participant is asked to study 21 photographs and then recall as many details from the photographs as possible. In this
study, what is 8 hours of sleep? a. The independent variable b. The dependent variable c. The sample d. A condition of the independent variable
What is one difference between a time-series design and an interrupted time-series design?
a. Time series examines the effect of a treatment and interrupted time series examines the effect of an outside event. b. Time series examines the effect of an outside event and interrupted time series examines the effect of a treatment. c. Time series involves several observations before and after the treatment/event and interrupted time series has only one observation before and after. d. Time series involves only one observation before and after the treatment/event and interrupted time series has several observations before and after.