Social and Philosophical Foundations of Education

+ and - correlation
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Author:  Jill Parsons [ Thu Apr 27, 2006 9:39 am ]
Post subject:  + and - correlation

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!!

Author:  Emily Dale [ Thu Apr 27, 2006 10:13 am ]
Post subject: 

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.

Author:  Maggie Chambers [ Thu Apr 27, 2006 6:19 pm ]
Post subject: 

An example of negative correlation is grades and number of absences. When the number of absences is high, grades are low, and vice versa.

Author:  Adam Warren [ Thu Apr 27, 2006 10:53 pm ]
Post subject: 

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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