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 + and - correlation 
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Would someone be willing to explain to me the difference between positive and negative correlation. I understood it in class but now that i am working on the final i can't seem to wrap my brain around the idea. Thanks so much!!

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Jill Parsons


Thu Apr 27, 2006 9:39 am
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If I understand it correctly, an example of positive correlation can be observed between class attendance and grades. As a student attends class more often, their grades are more likely to go up and as a student misses classes, their grades are more likely to go down (both variables move in the same direction with positive correlation). I can't think of a good example for negative correlation right now but with a negative correlation the variables move in opposite directions. So as x occurs more often y will occur less often, and vice versa.

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Emily Dale


Thu Apr 27, 2006 10:13 am
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An example of negative correlation is grades and number of absences. When the number of absences is high, grades are low, and vice versa.

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Maggie Chambers

Education is what survives when what has been learned has been forgotten. ~ B. F. Skinner


Thu Apr 27, 2006 6:19 pm
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Imagine a graph. A postive slope is one taht goes up from left to right, meaning that both axises [sic] are low, then as it gets higher, both axises are high. So if the Y axis is Grades, and the X axis is Attendance, then it would be a postivie slope, correlation. As attendance goes up so does the grades.

negative would be a negative slope.

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-Adam Warren

Never forget there are things bigger than you.


Thu Apr 27, 2006 10:53 pm
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