Pearson correlation coefficient
GPTKB entity
AI-created image
Statements (28)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
statistical analysis
|
| gptkbp:alsoKnownAs |
gptkb:Pearson's_r
bivariate correlation |
| gptkbp:appliesTo |
two variables
|
| gptkbp:assumes |
homoscedasticity
linearity normality |
| gptkbp:category |
correlation coefficients
descriptive statistics |
| gptkbp:form |
cov(X,Y)/[σ_X * σ_Y]
|
| https://www.w3.org/2000/01/rdf-schema#label |
Pearson correlation coefficient
|
| gptkbp:introducedIn |
1895
|
| gptkbp:measures |
linear correlation
|
| gptkbp:namedAfter |
gptkb:Karl_Pearson
|
| gptkbp:range |
-1 to 1
|
| gptkbp:relatedTo |
gptkb:Kendall's_tau_coefficient
gptkb:Spearman's_rank_correlation_coefficient |
| gptkbp:requires |
interval or ratio data
|
| gptkbp:usedIn |
gptkb:natural_sciences
data analysis psychology social sciences statistics |
| gptkbp:valueOf_-1 |
perfect negative linear relationship
|
| gptkbp:valueOf_0 |
no linear relationship
|
| gptkbp:valueOf_1 |
perfect positive linear relationship
|
| gptkbp:bfsParent |
gptkb:Karl_Pearson
|
| gptkbp:bfsLayer |
4
|