In order to learn whether the people in Newburg opposed or supported the expansion of the town's elementary school, Mayor Tyson randomly selected and interviewed 100 of the town's 10,000 residents. In this instance, the 100 people who were interviewed by the Mayor would be considered to be:
a. a population
b. a representative sample
c. the dependent variable
d. the independent variable
B
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In the rouge test, what would you expect a 12-month-old to do?
a. Point at herself in the mirror and then ask her mother to remove the rouge. b. Wipe the rouge off her nose. c. Pay no attention to the baby in the mirror. d. Reach out and touch her reflection.
Dr. Broca wants to measure the intelligence of children between the ages of 6 and 11 years old. Assuming he can put the brains back into their heads with no harm to the children, which of the following methods will give him the most accurate results?
A) Weighing the brains B) Measuring the size (or volume) of the brains C) Inspecting the rate at which the synapses are being generated and pruned D) Measuring the thickness of the frontal and temporal lobes
Studies show that college students who have depressed roommates tend to become:
A. more studious and committed to achieving academic success. B. more accepting of people suffering from psychological disorders. C. somewhat depressed themselves. D. more optimistic about their own lives.
A disadvantage of experimental research designs is that
a. there are some things that can cannot be experimentally manipulated. b. they are often conducted in schools and institutions. c. causal relationships are difficult to determine. d. they use a measured dependent variable.