4a definitions Flashcards
1
Q
Positive Correlation
A
When an increase in one variable means an increase in the second variable
x
x
x
2
Q
Negative Correlation
A
When an increase in one variable means a decrease in the second variable
x
x
x
3
Q
No correlation
A
When the two variables are not related
4
Q
Interpolation
A
Making a prediction INSIDE the data range
5
Q
Extrapolation
A
Making a predication OUTSIDE the data range
6
Q
Spearman’s Rank Correlation Coefficient
A
Numerical value between -1 and 1 which tells you how much in agreement two sets of ranked data are
7
Q
Pearson’s correlation coefficient (product moment correlation coefficient)
A
Numerical value between -1 and 1 which tells you whether data has a linear correlation
8
Q
A
