A study was conducted to determine if a new drug for treating depression is more effective than an existing drug. One hundred subjects who suffer from servere depression participated. Fifty were selected at random and were given the new drug and the other 50 were given the existing drug. A psychiatrist evaluated the symptoms of all subjects after four weeks and determined whether or not each subject's condition had improved.

The term "jim crow" is used to describe which of these? a) bans on hunting b) segregation of the races c) preventing women from voting d) creating more public schools

The persians landed in the plains near athens. as their army greatly outnumbered that of the greeks, the greeks hoped to find aid from nearby sparta. a long-distance runner named pheidippides was sent from athens to sparta to request , but the spartans were not able to send more soldiers at the time. regardless, the greeks were still able to win the battle. centuries later, legend developed that a runner had been sent from the battle to athens after the greek victory. after reaching athens, the runner proclaimed, "we are victorious! " and then fell to the ground and died. this legendary story is the inspiration for the modern long-distance runs that are performed today. this passage refers to the events of which battle during the persian wars? a. battle of thermopylae b. battle of salamis c. battle of plataea d. battle of marathon

The ability to accurately gauge the distance of the coffee cup on your desk as you reach for it is called: