Q49
In an experiment, after completing conditioning once, an injection of a drug affecting neuro transmitter substance was given to the affecting neuro transmitter substance was given to the subject. Then, the subject was conditioned again. In this experiment, what were bio-chemical changes treated as?
A.
Dependent variable
B.
Independent variable
C.
Control variable
D.
Intervening variable
AnswerAnswer: Option D
Solution
Answer: Option D
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