The authors of your textbook discussed a study on teaching practices in which their two classes where communicating with one another and influenced the results of the study
In this scenario, which of the following was a threat to internal validity?
a. attrition
b. testing
c. diffusion of treatment
d. instrumentation
C
Political Science
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Researchers refer to the unintended influence of the questioner on respondents during in-person interviews as __________
a. question bias b. the margin of error c. interviewer bias d. self-selection
Political Science
What is the main role of interest groups in elections?
a. to get as many people registered to vote as possible b. to advertise their position in the media c. to get candidates elected who are friendly to their policy positions d. to keep voters from voting for positions unfavorable to the interest group
Political Science