Katrina and Carla are fraternal twins
They have different groups of friends, different interests, and different personalities. Katrina is described as antagonistic, offensive, and unfriendly, whereas Carla is described as warm and easygoing. These twins differ on the _____ factor of the five-factor model.
a) conscientiousness
b) agreeableness
c) openness to experience
d) extraversion
Answer: b
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Researchers who were studying the effects of music on plant growth raised plants in two different rooms. One room had soft music playing 24 hours a day; the other room had no music. In this study, the control group is:
a. the plants in the room with no music b. the plants in the room with the music c. the plants that grow the most during the study d. all the plants used during the study
Most recent research has shown that depth perception begins to develop as early as what age?
a. two weeks b. six weeks c. eight weeks d. four months
In agonist treatment for addiction, the treatment drug would be expected to ______.
A. have opposite effects to the original drug B. have similar effects to the original drug C. have neural effects by working through different neurotransmitter systems D. not work; agonist treatments are not effective
How do income and education relate to health and life expectancy in America today?
A) ?Income affects health problems; education affects life expectancy. B) ?Income affects life expectancy; education affects health problems. C) ?Income and education both affect both health and life expectancy. D) ?Income and education influence neither health nor life expectancy.