Susan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable sound or no sound at all. She randomly divides twenty-four students into three groups of eight. All students study a passage of text for 30 minutes. Those in group 1 study with background sound at a constant volume in the background. Those in group 2 study with noise that changes volume periodically. Those in group 3 study with no sound at all. After studying, all students take a 10 point multiple choice test over the material. Their scores follow: Group test scores 1) constant sound 7 4 6 8 6 6 2 9 2) random sound 5 5 3 4 4 7 2 2 3) no sound 2 4 7 1 2 1 5 5 Calculate the Between-Subject One-Way ANOVA, make sure you include all the steps and show your calculations. Determine if you need a post hoc analysis, if so, complete the post-hoc analysis Interpret the results of your statistical calculation
Susan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable sound or no sound at all. She randomly divides twenty-four students into three groups of eight. All students study a passage of text for 30 minutes. Those in group 1 study with background sound at a constant volume in the background. Those in group 2 study with noise that changes volume periodically. Those in group 3 study with no sound at all. After studying, all students take a 10 point multiple choice test over the material. Their scores follow:
|
Group |
test scores |
|||||||
|
1) constant sound |
7 |
4 |
6 |
8 |
6 |
6 |
2 |
9 |
|
2) random sound |
5 |
5 |
3 |
4 |
4 |
7 |
2 |
2 |
|
3) no sound |
2 |
4 |
7 |
1 |
2 |
1 |
5 |
5 |
Calculate the Between-Subject One-Way ANOVA, make sure you include all the steps and show your calculations.
Determine if you need a post hoc analysis, if so, complete the post-hoc analysis
Interpret the results of your statistical calculation
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