In an experiment, it is of great importance to employ
A) biased participant assignment.
B) systematic manipulations of the dependent variable.
C) payment of participants in order not to rely on volunteers.
D) random assignment of participants to conditions.
Answer: D
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What should we do if a theory is proven wrong?
a. We have to reject it and construct a new theory. b. We can add auxiliary arguments and see if they can improve the theory. c. We have to embrace the opposite theory. d. a and c are correct.
Pollsters attempting to draw conclusions about a large population with a scientific poll rely on what?
a. sample basis b. tracking polls c. television polls d. random sampling
Why are there congressional committees?
What will be an ideal response?
The principle of universal participation may still be met even if some adults (such as recent immigrants) are excluded from participation if this exclusion is based on
a. the principle of political equality. b. practical or political reasons in a particular country. c. failure to understand the political system. d. lack of knowledge of the nation's dominant language. e. conflicts of law.