In experimental research, the treatment groups typically
A) are levels of the dependent variable.
B) are levels of the independent variable.
C) reflect the values of the researcher.
D) are control variables.
B
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Which of these is true about nonromantic hugs? a. They increase estrogen release in both men and women
b. They increase testosterone release in both men and women. c. They last more than ten times as long in some cultures than in others. d. Their mean duration is three seconds throughout the world.
Describe the impact that Constantine had on Christianity.
What will be an ideal response?
Research has identified several factors that might explain the prevalence of schizophrenia in urban environments. One of them is the stress related to
A. "keeping up" with neighbors financially, by buying expensive houses and cars. B. commuting long distances to work. C. racism. D. outdoor noise levels.
According to Descartes, the movements of the body are caused by
a. the flow of fluid from the brain to the nerves that then cause the muscles to contract. b. stimulation of the pineal body to release specific chemicals that then travel through the bloodstream to the appropriate set of muscles. c. specific commands from the brain that cause specific muscles to move. d. spirits within the mind that travel through the nervous system. e. electrical flow through the nerves to the muscles.