Software report demonstrates bidirectional derivation between research hypotheses and contrast matrices in R, highlighting streamlined statistical modeling.
The hypr package in R provides the researcher with a straightforward interface to generate contrast matrices from research hypotheses and the reverse. It can be used to derive contrast matrices for custom research hypotheses and as an instructional tool to understand what research hypotheses a given contrast matrix tests. We previously reviewed the statistical methodolgy in a tutorial on contrast coding based on the generalized matrix inverse
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Rabe et al. (2020) studied this question.
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