Multiple Choice
Dr.Esterson is studying the effect of caffeine on laboratory rats.He has decided that he will give the rats 100 milligrams of caffeine three times a day,and then run them through mazes at various points to see if there is any change in the time it takes to complete the maze.Based on his review of existing research addressing this topic,Dr.Esterson believes that the rats will complete the maze the fastest immediately after they ingest the caffeine.Dr.Esterson's belief about the results he will find is called a(n) :
A) covariate.
B) construct.
C) theory.
D) hypothesis.
Correct Answer:
Verified
Correct Answer:
Verified
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