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Question

ofDr x Y memory music-YahxAplia: Student Question x af/servlet/quiz?2ctx-joelevy-0009&quiz; action s takeQuiz&uquiz; probGuid-QNAPCOA801010000003baec9100900008ckem 15) 6. Interpreting statistical software output for a repeated-measures ANOVA As Aa Researchers at the University of Virginia randomly assigned 60 four-year-olds to one of three tasks: watch a fast-paced television cartoon, watch a slower-paced educational cartoon, or partidipate in a drawing activity for a nine-minute period. At the end of the period, the researchers tested the children's "executive function,"using various tests intended to measure characteristics such as self-regulation and working memory. These researchers found that those children who watched the fast-paced cartoon scored lower on the different measures of executive function than those children who either watched the educational cartoon or did the drawing activity. [Source: Lillard, A. S& Peterson, J. (2011). The immediate impact of different types of tellevision on young Pediatrics, 128(4), 644-649. children's executive function. Suppose you are a cognitive psychologist and want to see whether you would find similar results using a repeated-measures design and focusing on a measure of attention. You collect a random sample of 20 four-year-olds to each participate in all three activities, measuring their attention after each activity. To avoid order and carryover effects, you randomize the order in which each child participates in the activity and space the three activities at least one week apart. You use a statistical computing package, such as spss to conduct a repeated-measures ANOVA. Assume your data satisfies the required assumptions for a repeated-measures ANOVA Descriptive Statistics Std DeviationN 9.75101 20 9.74401 20 20 Mean Fast-Paced Cartoon Educational Cartoon26.9502 Drawing Activity 25.0324 26.8824 10.10148 Tests of Within-Subjects Effects Type I1I Sum of ace FS F6 F7 F10 F11 F12 Prtsc Pause

Explanation / Answer

Result:

A repeated measure ANOVA indicated that there is significant differences among the attention scores after four year old chidren watch a fast paced cartoon, watch an educational cartoon, or participate in a drawing activity; F(2,38)=6.85, p=.003, 2 =0.26.

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