RWG: RWG: Within-Group Agreement

In james-lebreton/WGA: WGA: Within-Group Agreement & Data Aggregation

RWG: Within-Group Agreement

Description

This function estimates James, Demaree, & Wolf's (1984) within-group agreement statistic for a single item, denoted rwg.

Usage

RWG(x, grpid, model, scale, reset = F, cutoff)

Arguments

x	Item on which to estimate RWG
grpid	Grouping/clustering variable
model	User-supplied description of multilevel measurement model (e.g., consensus)
scale	Minimum and Maximum Values of the Scale
reset	Logical option for handling negative estimates of RWG; FALSE retains negative values; TRUE resets values to 0
cutoff	User-supplied cutoff for justifying data aggregation

Details

The input consists of a data frame, and the names of the grouping variable and item. The output consists of a data frame containing the group names, the variance within each group, and estimates of rwg based on multiple null response distributions (see LeBreton and Senter, 2008).

Link to James, Demaree, & Wolf (1984): Link to LeBreton & Senter (2008): Link to LeBreton, Moeller, & Senter (2021):

Value

List containing results of analysis

Examples

data(lq2002, package = "multilevel")
RWG(x = lq2002[,c(3)], grpid = lq2002$COMPID, model = "consensus",
    scale = c(1,5), reset=FALSE, cutoff=.50)

james-lebreton/WGA documentation built on Oct. 17, 2022, 4:05 a.m.