R/ChoA-data.R

In eunscho/reliacoef: Compute and Compare Unidimensional and Multidimensional Reliability Coefficients

#' Cho's (in press) artificial unidimensional data of three items
#'
#' A hypothetical data consisting of three items. Item 1 has a variance of 1, 
#' item 2 is a copy of item 1, and item 3 is item 1 multiplied by -1. This  data
#' show that coefficient alpha derives negative reliability.
#' @docType data
#' @usage data(ChoA)
#' @source Cho, E. (in press). Neither Cronbach's alpha nor McDonald's omega: A 
#' comment on Sijtsma and Pfadt. Psychometrika.
#' @author Eunseong Cho, \email{bene@kw.ac.kr}
#'
"ChoA"