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Experimental design, data analysis, and statistical tooling for modern teams. No hype, just the math.

Partial Correlation
RelationshipJan 31New

Partial Correlation

Partial Correlation is used to examine the relationship between two continuous variables while accounting for the effects of one or more other variables.

Pearson Correlation
RelationshipJan 31New

Pearson Correlation

Pearson Correlation is used to measure the relationship between two continuous variables when they are not skewed, ordinal, and don't have outliers.

Phi Coefficient
RelationshipJan 31New

Phi Coefficient

The Phi Coefficient can be used to determine the strength of the relationship between two binary variables.

Point-Biserial Correlation
RelationshipJan 31New

Point-Biserial Correlation

Point biserial correlation is used to measure the relationship between two variables when one variable is binary and the other is continuous.

Spearman's Rho
RelationshipJan 31New

Spearman's Rho

Spearman's Rho measures the relationship between two variables when one or more of the variables is ordinal, non-linear, skewed, or has outliers.

Log-Linear Analysis
Goodness of FitJan 7New

Log-Linear Analysis

Log-Linear Analysis is a test used to determine if the proportions of categories in two+ group variables significantly differ from each other.

Chi-Square Test of Independence
Goodness of FitDec 5New

Chi-Square Test of Independence

The Chi-Square Test of Independence is a test used to determine if the proportions of categories in two group variables differ from each other.

Exact Test of Goodness of Fit (multinomial model)
Goodness of FitDec 5New

Exact Test of Goodness of Fit (multinomial model)

The multinomial exact test is a test used to determine if the proportions of categories in a single qualitative variable differ from an expected proportion.

Exact Test of Goodness of Fit
Goodness of FitDec 5New

Exact Test of Goodness of Fit

The Exact Test of Goodness of Fit is used to determine if the proportions of categories in a single qualitative variable differ from an expected proportion.

Fisher's Exact Test
Goodness of FitDec 5New

Fisher's Exact Test

Fisher's Exact Test is a statistical test used to determine if the proportions of categories in two group variables significantly differ from each other.

G-Test of Goodness of Fit
Goodness of FitDec 5New

G-Test of Goodness of Fit

The G-Test of Goodness of Fit is used to determine if the proportions of categories in a single qualitative variable differ from an expected proportion.

G-Test
Goodness of FitDec 5New

G-Test

The G-Test is a test used to determine if the proportions of categories in two group variables significantly differ from each other.