Answer Happy

7. [10 pts.] A police precinct eurolls 6 police officers into a bias reduc tion course that promotes perspective taking. Each police officer completes the First Person Shooter Task (FPST), a measure of im plicit bias, before the bins reduction course and then immediately after the course is completed. Analyze the scores by calculating an effect size measure and test whether the course changed the officers implicit bias using a-05. Include a 95% confidence interval and a conclusion. 22222 8. [10 pts.] A developmental psychologist wants to determine if watch- ing different videos has an effect on children's verbal knowledge. She recruits 13 3-year-olds into her study and randomly assigns each of them either to watch Sesame Street or to watch Baby Ein- stein. After watching the programming, she asks them to identify the letters in the alphabet that they know. Analyze the scores by calculating an effect size measure and test whether the videos had different effects on the children's letter knowledge using a - 05. Include a 95% confidence interval and a conclusion. 12 Baby Einstein 12 10 12 Before After 0.25 0.06 0.17 -0.02 0.05 0.05 0.15 0.04 15 0.14 0.22 0.24 13 11 Sesame St. 14 15 14 17 16 (continued) Baby Einstein Sesame St.