Question 11 If a pretest causes a change in participants’ sensitivity to a treatment, what threat is operating? A.reactive effect of experimental setting B.reactive effect of testing C.multiple-treatment interference D.selection bias Question 12 What is the name of the threat that warns researchers to be careful in generalizing the results to a population when an experiment is conducted on a nonrandom sample? Question 13 A researcher administers a standardized test to the students in a school testing a new program as well as to students in a similar school as a control group. To what extent is comparison of the average scores for the two groups of students useful for determining the effects of the program? Question 14 Which of the following factors is primarily responsible for limitations in identifying cause and effect relationships using pre-experimental designs?
RSCH 202 Module 5 Quiz 100%
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- Spring '14