"What is the relationship between viewing violence on the one hand, and behaving aggressively on the other hand?" How might an observational researcher, a correlational researcher, and an experimental researcher answer that question?
What will be an ideal response?
Answer: Observational researchers might systematically observe how much violence children watch on television and how aggressively they behave on the playground or in the classroom; they might also conduct archival research, comparing rape statistics with the availability of violent pornography. Correlational researchers might use surveys to see whether there is a relationship between what people watch on television and their self-reports of aggressive behaviors; alternatively, they could survey parents about children's viewing habits and survey teachers about the children's behaviors. Minimally, experimental researchers would randomly assign participants to one of two experimental conditions (experimental and control groups) that systematically vary in violence content, and collect dependent measures of participants' aggressive behaviors.
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According to Denney's model, the maximum level of cognitive and physical function an individual can achieve with exercise
A) steadily decreases after middle adulthood. B) steadily increases as the individual ages. C) is determined by social class, gender, and ethnicity. D) stabilizes at about age 40.
Which of the following best describes the means by which neurons communicate with each other?
a. Sodium ions from one neuron flow into a second neuron, and potassium ions flow out. b. Potassium ions from one neuron flow into a second neuron, and sodium ions flow out. c. Neurotransmitters flow across the synapse and attach to receptor sites. d. Electrical charges cross the synapse.