What is the disadvantage of using a quasi-independent variable instead of an independent variable in this research?
A researcher designs a study to test whether doing yoga improves physical health.
Ans: Because there is no random assignment to the groups, researchers cannot draw cause-and-effect conclusions as they can with an independent variable.
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The number of school districts in the United State is approximately
A) 10,000. B) 14,000. C) 20,000. D) 24,000.
If you wanted students to learn how to critically evaluate what they read on Internet websites, you would be most likely to:
a. ask students to consider the motives of the people creating the websites. b. suggest that students check to see how recently the information was posted on the websites. c. urge students to disregard any websites that aren't sponsored by an organization they've heard of. d. tell students that websites with eye-catching graphics are usually designed by professionals and therefore offer credible information.
Information technology
a. can be integrated into a student's daily study tasks. b. cannot be integrated into a student's daily study tasks. c. can be integrated into a student's daily study tasks but it is very difficult to do so. d. should not be integrated into daily study tasks because the effort required to do so is much greater than the small benefit that is gained by studying this way.
Not uncommon among the ranks of teachers in colonial America were
a. Persons who had been unsuccessful at other occupation. b. Indentured servants. c. Local ministers. d. All of the above.