In an experiment to study the effects of marijuana usage on memory, previous experiences with drug usage indicate ____.
a. experimenter bias
b. the independent variable
c. the dependent variable
d. a confound
Question 2
A professor wants to examine the effects of diet on learning. He places some laboratory rats on a starvation diet (Group A) but eliminates only desserts from the diet of a second group (Group B). During the experiment, the professor discovers that he needs more Group B rats, so he catches some in a local alley. The results of the experiment show that Group B rats are faster at learning a maze, so the professor concludes that diet is related to learning speed. Which statement about his conclusion is most accurate?
a. The professor's conclusion is correct because the number of rats in each group are the same.
b. The professor's conclusion is correct because the two groups of rats were on a different diet.
c. The professor's conclusion is incorrect because the type of rat was a confound.
d. The professors conclusion is incorrect because the study is correlational.
Rutherford's gold foil experiment demonstrating that most of the volume of an atom is empty spa
An example of an experiment that supported Beadle and Tatum's one gene
Experiment on newt embryos that led to the discovery of Spemann's organizer.
) IV bolus administration. (b) the drug is administered through the port using a needleless syring
Organizational Effects of Testosterone Around the time of birth, testosterone masculinizes and defem
Nursing Responsibilities Related to Adverse Drug Reactions and Drug Interactions in Older Adults