Please explain how you can control the effects of a third variable in a multivariate cross-tabulation by grouping.
What will be an ideal response?
In a multivariate cross-tabulation, we control a third variable by holding it constant. In effect, we control by grouping, that is, we group the observations according to their values on the third variable and then observe the original relationship within each of these groups. In our example, each group consists of people with more or less the same income. If a relationship between opinions on spending and voting in these groups remains, it cannot be due to income.
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A psychology professor surveyed college students on his campus to determine their attitudes toward binge drinking. His work fulfilled which objective of science?
a. description b. explanation c. prediction d. control
Framing is best defined as the influence on
A) public opinion as a result of the way a story is presented or covered, including the details and context offered in the report. B) public opinion from a story that covers one candidate or policy favorably without providing similar coverage of the other side. C) public opinion as a result of journalists' decisions about which news stories to cover. D) government policy as a result of positive or negative coverage of an issue. E) government activities as a result of media coverage of an issue.