Lambda4 (version 3.0)

user.lambda4: Compute User Specified Lambda 4 (Split-Half)

Description

Compute User Specified Lambda 4 (Split-Half)

Usage

user.lambda4(x, split.method = "even.odd", item.stats = FALSE, missing = "complete")

Arguments

x

Can be either a data frame or a covariance matrix.

split.method

Specify method for splitting items.

item.stats

If TRUE then item statistics are provided in the output.

missing

How to handle missing values.

References

Guttman L (1945). "A Basis for Analyzing Test-Retest Reliability." Psychometrika, 10, 255-282.

Examples

user.lambda4(Rosenberg)
user.lambda4(Rosenberg, c(0, 1, 1, 0, 1, 1, 0, 1, 0, 0))