In a single-group, posttest-only study, an observed difference
A) cannot be a placebo effect.
B) might be a placebo effect.
C) is strong evidence for a causal relationship.
D) is almost always going to be statistically significant.
Answer: B
You might also like to view...
Why is the Civil Rights Act of 1964 important to voters?
Researchers have a strong moral and professional obligation to
A) act ethically when someone is watching. B) act ethically when the subject asks questions. C) act ethically at all times and in all situations. D) do nothing, a researcher can do anything she wants.
How is the Iranian effort to acquire nuclear capabilities an example of the problem of sovereignty?
a. Iran could potentially use a nuclear weapon to attack another sovereign nation. b. Iran does not have the legitimate authority to break international atomic energy agreements. c. Iran is powerless to stop other nations from imposing economic sanctions to stop its nuclear program. d. Iran has no obligation to comply with the desire of other nations to limit the proliferation of nuclear weapons.
The phrase “city on a hill” is often used in politics to express the
a. belief that the United States is vastly superior to other nations. b. belief that the United States should serve as an example to other nations. c. distinction between Washington, D.C. and other cities. d. need to build cities outside flood zones. e. need to connect religion and politics.