Multiple Choice
Dr.LaGuardia is curious as to whether children in a daycare center will share more after watching an educational video on sharing.Immediately before and after the video,he has several undergraduate research assistants code the sharing behavior of a group of 33 four-year-olds.Which of the following would you NOT recommend to him to decrease the threat of instrumentation?
A) Establishing the reliability and validity of his coders at pretest
B) Establishing the reliability and validity of his coders at posttest
C) Using clear coding manuals
D) Using only one research assistant to code all the videos
Correct Answer:
Verified
Correct Answer:
Verified
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