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Calculate covariate means by treatment status

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Reference no: EM132595640

Convert categorical variables to factors

Calculate covariate means by treatment status
Calculating standardized mean Difference

Classical test to see if treatment groups differe significantly across covariates
Run statistical tests for group differences

Running one way anova
the first step is to set contrast options as contr.helmert","contr.poly"
Set helmert contrasts as the default

ANCOVA
Examine chronicity vs one-year severity relationship graphicaly
Why does ANCOVA help? Compare to ANOVA.

Attachment:- LAB.rar

Reference no: EM132595640

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