It has been difficult to do double-blind, placebo-controlled ...

[berenicecastro]

It has been difficult to do double-blind, placebo-controlled studies on the effects of steroids because
 
  A. the federal government will not allow research with controlled substances.
  B. they produce detectable psychological effects.
  C. the potency of the drugs is so variable from one sample to another.
  D. the researchers could face a massive lawsuit.

Question 2

College athletes who want to avoid failing a drug test
 
  A. can easily do so by not taking steroids and not taking amphetamines.
  B. have to be sure to avoid eating almonds, because they might cause a false positive.
  C. have to be very careful, because there are more than 3,000 products containing banned substances.
  D. basically would have to not eat or drink anything the day of the event.

[laurnthompson]

Answer to Question 1

B

Answer to Question 2

C

[berenicecastro]

TYSM

[apple]

Gracias!