Suppose the Pearson correlation coefficient (r) for the relationship between political tolerance and education were .40 and the significance level is .007. Which of the statements below is the correct interpretation of the degree of relationship here?
A. By knowing the independent variable education, we can reduce the number of errors in predicting the dependent variable political tolerance by .7%.
B. By knowing the independent variable education, we can reduce the number of errors in predicting the dependent variable political tolerance by 40%.
C. The independent variable education explains 16% of the variation in the dependent variable political tolerance.
D. The independent variable education explains 40% of the variation in the dependent variable political tolerance.
C.
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Sally selects classrooms of first graders to study the effects of teaching styles on math
achievement. This is an example of ________________________. a) stratified random sampling b) cluster sampling c) proportional sampling d) sampling error
Which of the following is the term generally used to describe the institutions and procedures through which a territory and its people are ruled?
- government - legislature - economy - politics
The two most important sources of imported oil for the United States are
A. Iraq and the Persian Gulf. B. Saudi Arabia and North Africa. C. Venezuela and the Middle East. D. Canada and Russia. E. None of these answers is correct.
Why has there traditionally been no formal division along party lines or a formal system of choosing floor leaders in the Texas legislature?
a. The powers of the presiding officers and the longtime Democratic-controlled system did not produce a leadership structure comparable to that of the U.S. Congress. b. Though membership in the legislature includes Republicans and Democrats, the delegation of power has not been typically done in a partisan fashion. c. Legislative rules concerning the appointing of floor leaders was removed in the early twentieth century to reduce partisanship. d. Though membership in the legislature includes Republicans and Democrats, the delegation of power has been left to the whim of the presiding officers, which varies greatly.