scale_group_means: Scaling of Group Means and Standard Deviations

In sirt: Supplementary Item Response Theory Models

Scaling of Group Means and Standard Deviations

Description

Scales a vector of means and standard deviations containing group values.

Usage

scale_group_means(M, SD, probs=NULL, M_target=0, SD_target=1)

## predict method
predict_scale_group_means(object, M, SD)

Arguments

M	Vector of means
SD	Vector of standard deviations
probs	Optional vector containing probabilities
M_target	Target value for mean
SD_target	Target value for standard deviation
object	Fitted object from scale_group_means

Value

List with entries

M1	total mean
SD1	total standard deviation
M_z	standardized means
SD_z	standardized standard deviations
M_trafo	transformed means
SD_trafo	transformed standard deviations

Examples

#############################################################################
# EXAMPLE 1: Toy example
#############################################################################

M <- c(-.03, .18, -.23, -.15, .29)
SD <- c(.97, 1.13, .77, 1.05, 1.17)
sirt::scale_group_means(M=M, SD=SD)

sirt documentation built on May 29, 2024, 8:43 a.m.