Nearly everybody who is serving a sentence in a British prison watched more than an hour of television in childhood. Therefore, we may assume that watching television in childhood encourages criminal behaviour.
Which of the following facts, if true, would most damage the conclusion drawn?
1. Many children continue to watch television when they become adults.
2. Modern British prisons provide television viewing to the prisoners.
3. The majority of people who have not been convicted of crimes also watched a great deal of television in childhood.
4. Some people who did not watch television in childhood have been sent to prison.
5. Some television programs aimed at children contain moral messages and encourage good behaviour.