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gptkbp:instanceOf
|
statistical analysis
|
|
gptkbp:alsoKnownAs
|
gptkb:Pearson_correlation_coefficient
gptkb:Pearson_product-moment_correlation_coefficient
|
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gptkbp:appliesTo
|
two continuous variables
|
|
gptkbp:assumes
|
homoscedasticity
linearity
bivariate normality
|
|
gptkbp:canBe
|
t-test for correlation
|
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gptkbp:category
|
correlation coefficient
|
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gptkbp:field
|
gptkb:mathematics
gptkb:medicine
gptkb:natural_sciences
economics
education
engineering
psychology
social sciences
|
|
gptkbp:form
|
cov(X,Y)/[std(X)*std(Y)]
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Pearson's r
|
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gptkbp:interpretedBy
|
-1 means perfect negative linear correlation
0 means no linear correlation
1 means perfect positive linear correlation
|
|
gptkbp:inventedBy
|
gptkb:Karl_Pearson
|
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gptkbp:measures
|
linear correlation
|
|
gptkbp:notRecommendedFor
|
nominal data
ordinal data
nonlinear relationships
|
|
gptkbp:output
|
dimensionless number
|
|
gptkbp:publishedIn
|
1896
|
|
gptkbp:range
|
-1 to 1
|
|
gptkbp:relatedTo
|
gptkb:Kendall's_tau
gptkb:Spearman's_rank_correlation_coefficient
|
|
gptkbp:sensitivity
|
outliers
|
|
gptkbp:symbol
|
r
|
|
gptkbp:type
|
parametric statistic
|
|
gptkbp:usedIn
|
data analysis
statistics
|
|
gptkbp:bfsParent
|
gptkb:Pearson_correlation_coefficient
|
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gptkbp:bfsLayer
|
5
|