EMC2 (version 2.1.0)

contr.bayes: Contrast to enforce equal prior variance on each level

Description

Typical contrasts impose different levels of marginal prior variance for the different levels. This contrast can be used to ensure that each level has equal marginal priors (Rouder, Morey, Speckman, & Province; 2012).

Usage

contr.bayes(n)

Value

A contrast matrix.

Arguments

n

An integer. The number of items for which to create the contrast

Examples

{
design_DDMaE <- design(data = forstmann,model=DDM, contrasts = list(E = contr.bayes),
formula =list(v~S,a~E, t0~1, s~1, Z~1, sv~1, SZ~1),
constants=c(s=log(1)))
}