Description of the Crime:
On Friday, May 12, 2000, the owner of a small grocery store was confronted by a man who demanded money from the cash register. The owner immediately handed $110 to the robber, who took the money and started walking away. Suddenly, and for no apparent reason, the robber turned and fired two shots at the owner and his five-year-old granddaughter, who was standing behind the counter. Both victims died instantly. Two hours later, the police arrested a suspect and charged him with robbery.
Summary of Arguments Presented by the Prosecution:
-The robber was seen running into the same apartment house in which the defendant lived.
-$123 was found in the defendant's room
-Traces of ammonia used to clean the floor of the store were found on the defendant's shoes.
-Chemical tests to determine whether a person has gun powder on his hands from firing a gun indicated that there was a slight possibility that the defendant had fired a gun during the same day.
-A clerk who was in the store during the robbery testified that he saw the defendant shoot the two victims.
Summary of Arguments Presented by the Defense:
-The defendant testified that he did not commit the crime.
-The defendant testified that the money found in the room was his savings from two months.
-The defendant testified that the ammonia traces on his shoes could have been obtained at a different place because he worked as a delivery man.
-The defendant testified that he had never fired a gun in his life.

Required:
1. What is the independent variable (i. e., what was manipulated)?
2. What is the dependent variable (i. e., what was measured)?
3. What is your hypothesis? Why is this your hypothesis? (Hint: Make a prediction about how the independent variable affects the dependent variable.)

Running and sleep. sufficient sleep is important for adolescents for both their neural and psychological development. despite this, daytıme sleepiness and poor physical and psychological functioning related to chronic sleep disturbances are common. there is a growing body of evidence that exercise is associated with both better sleep and improved psychological functioning sixty participants were recruited from a high school in northwesten switzerlandthey were randomly assigned to either a running group or a control group, 30 to each group the running group ran every moming for a little over 30 minutes on weekdays for a three-week period. all participants used a sleep log for subjective evaluation of sleep, and sleep was also objectively assessed at the beginning and end of the study using a sleep electroencephalographic device that measured quantities such as sleep efficiency and time spent in the four different sleep phases. running was found to have a positive impact on both objective and subjective measures of sleep functioning what are the explanatory variable(s) and the response variable(s)? (a) outline the design of the experiment (b) (c) here are some more details on the treatment and control groups. all participants arrived at school at 7 a.m., and the running group did two laps on the track and then ran cross countrv in groups of at least four people for 30 minutes the control group remained seated at the track, worked on horpework. and interacted with each other. when the runners returned, all participants prepared for school and ate a breaktast that was provided. iwhy do you think the experimenters had the control group arrive at 7 am interact withdassmates and have breaktast together? explain. do you think having the control eroup do these activities is important for the types of conclusion that can be reached? how?

New communication technologies, improved transportation, and advanced military weapons made it possible for countries to speed up acquiring territory. rule large amounts of territory. fight off competition from opposing nations. expand their economies, which aided in conguest.

Open opinion / / / should juveniles spend life in prison? why? or why not?