The goal of CRTConjoint is to use the conditional randomization test
(CRT) to test for various hypothesis in conjoint experiments. In
particular, CRT_pval aims to test whether a factor matters
in any way. For example, does education matter in immigration
preferences given other attributes of the candidate.
You can install CRTConjoint from GitHub with:
# install.packages("devtools")
devtools::install_github("daewoongham97/CRTConjoint")or directly from CRAN with:
install.packages("CRTConjoint")This is a basic example which shows you how to test whether education matters for immigration preferences.
library(CRTConjoint)
# Immigration data
data("immigrationdata")
form = formula("Y ~ FeatEd + FeatGender + FeatCountry + FeatReason + FeatJob +
FeatExp + FeatPlans + FeatTrips + FeatLang + ppage + ppeducat + ppethm + ppgender")
left = colnames(immigrationdata)[1:9]
right = colnames(immigrationdata)[10:18]
## Not run:
# Testing whether edcuation matters for immigration preferences
education_test = CRT_pval(formula = form, data = immigrationdata, X = "FeatEd",
left = left, right = right, non_factor = "ppage", B = 100, analysis = 2)
education_test$p_val
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