8. [10 pts.] A developmental psychologist wants to determine if watch- ing different videos has an effect on children's

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8 10 Pts A Developmental Psychologist Wants To Determine If Watch Ing Different Videos Has An Effect On Children S 1 (30.23 KiB) Viewed 44 times

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. Baby Einstein 12 12 10 12 15 Sesame St. 14 15 14 17 16 (continued) Baby Einstein Sesame St. 14 13 11