A researcher wants to determine the effects of sugar consumption on aggressive behavior in children. In his experiment, he has some subjects consume no sugar (water only), some subjects drink 14 oz. of soda, and some subjects drink 28 oz. of soda
He then waits 30 minutes and asks them questions about how aggressively they would behave in certain situations. In this experiment, the level of sugar consumed would be the
A) correlation.
B) path analyses.
C) independent variable.
D) dependent variable.
C) independent variable. The independent variable is the variable that researchers systematically manipulate in an experiment.
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Which of the following is most true regarding bulimia?
a. The prevalence is higher in Western nations than other parts of the world, and the number of cases increased during the latter part of the twentieth century. b. The prevalence is lower in Western nations than other parts of the world, and the number of cases increased during the latter part of the twentieth century. c. The prevalence is higher in Western nations than other parts of the world, and the number of cases decreased during the latter part of the twentieth century. d. The prevalence is higher in developing nations than other parts of the world, and the number of cases increased during the latter part of the twentieth century.
Which of the following is not being mapped in the brain with recently developed technology, such as PET and MRI?
a) Self-transcendence, an adaptive characteristic in aging b) Processing centers in the brain for negative and positive emotion c) Brain regions important for forming the sense of self d) Brain regions that dictate our political affiliations