lin: Linear equating

In twolodzko/equi: equi: Equipercentile Equating

Description

Function for linear equating

Usage

lin(x, y, m = mean(y, na.rm = TRUE), s = sd(y, na.rm = TRUE))

## S3 method for class 'lin'
summary(object, ...)

Arguments

x,y	numerical vectors. Vector y can be omitted if m and s are provided.
m	target mean value, by default computed from y.
s	target sd value, by default computed from y.

Value

Returns object of class lin, that can be used for transforming scores using linear equating.

References

Kolen, M.J. & Brennan, R.J. (2004). Test Equating, Scaling, and Linking: Methods and Practices. New York: Springer-Verlag.

Examples

data(Tests)
x <- Tests[Tests$Sample == "P", "x"]
y <- Tests[Tests$Sample == "P", "y"]

(leq <- lin(x, y))
summary(leq)
lin(x, leq)

lin(x, m=100, s=15)

twolodzko/equi documentation built on Nov. 11, 2020, 4:04 p.m.