Don Callan loves his new job teaching fourth grade at a large pub- lic school. Lately, though, he has been concerned about the ag- gression he sees on the playground. He hears his students talking about movies, TV shows, and games that sound very violent. Don decides to conduct a research study. He theorizes that "indirect" violence causes actual violence and aggression. His hy- pothesis is that children who encounter indirect violence at home will prefer violent images and behaviors at school. He prepares a note for parents describing his experiment, asking them to indicate how often their children play with vio- lent games and watch TV shows and movies that contain violence. He then plans to observe all his students for two weeks on the playground, keeping a record of any time they act aggressively. In addition, he plans to place violent and nonviolent games, comic books, and DVDS on a table and ask each child to pick one to
Don Callan loves his new job teaching fourth grade at a large pub- lic school. Lately, though, he has been concerned about the ag- gression he sees on the playground. He hears his students talking about movies, TV shows, and games that sound very violent. Don decides to conduct a research study. He theorizes that "indirect" violence causes actual violence and aggression. His hy- pothesis is that children who encounter indirect violence at home will prefer violent images and behaviors at school. He prepares a note for parents describing his experiment, asking them to indicate how often their children play with vio- lent games and watch TV shows and movies that contain violence. He then plans to observe all his students for two weeks on the playground, keeping a record of any time they act aggressively. In addition, he plans to place violent and nonviolent games, comic books, and DVDS on a table and ask each child to pick one to
Don Callan loves his new job teaching fourth grade at a large pub- lic school. Lately, though, he has been concerned about the ag- gression he sees on the playground. He hears his students talking about movies, TV shows, and games that sound very violent. Don decides to conduct a research study. He theorizes that "indirect" violence causes actual violence and aggression. His hy- pothesis is that children who encounter indirect violence at home will prefer violent images and behaviors at school. He prepares a note for parents describing his experiment, asking them to indicate how often their children play with vio- lent games and watch TV shows and movies that contain violence. He then plans to observe all his students for two weeks on the playground, keeping a record of any time they act aggressively. In addition, he plans to place violent and nonviolent games, comic books, and DVDS on a table and ask each child to pick one to
1. Do you think Don’s theory is a good example of a theory? Is his hypothesis sound?
2. Is his study an experiment or a correlational study? Why or why not?
3. Do you think Don’s fourth graders would be able to understand and participate in the study and provide informed consent for their participation?
4. Do you think Don’s method will yield reliable results? Why or why not?
5. What do you suppose the students’ parents would think of the study? What will his instructional supervisor think? What do you think?
Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
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