Sujay is conducting a research on a group of factory machinists as part of a study on workplace stress and heart disease. Before conducting his study, he explains the objective of the study to the subjects and tells them what they would need to do. He gives them the opportunity to choose if they want to participate or not. In other words, Sujay is seeking__________.
A) reinforcement
B) informed consent
C) a placebo effect
D) participant exclusion
E) Select
Question 2
When Yanping entered college, she was unsure about which major to choose. She took a vocational interest test that indicated that she was highly analytic and should choose a math-based major. This spring she will graduate with honors with a mechanical engineering degree. The test Yanping took appears to have good ____validity.
a. content
b. split-half
c. predictive
d. concurrent
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