Multiple Choice
Professor Hoffman was interested in the effects of vitamin B12 deprivation on maze learning in rats. One group is given a vitamin B12 injection. The comparison group is
Given a placebo injection. He finds that the vitamin group learns the maze faster. In this study, the independent variable is ________ and the dependent variable is _.
A) speed of learning; type of injection
B) vitamin B12; placebo
C) speed of learning; concentration of sugar
D) type of injection; number of errors
E) type of injection; speed of learning
Correct Answer:
Verified
Correct Answer:
Verified
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