ci.rmsea: Confidence interval for the population root mean square error...

View source: R/ci.rmsea.R

ci.rmseaR Documentation

Confidence interval for the population root mean square error of approximation

Description

Confidence interval for the population root mean square error of approximation (RMSEA).

Usage

ci.rmsea(rmsea, df, N, conf.level = 0.95, alpha.lower = NULL, 
alpha.upper = NULL)

Arguments

rmsea

observed root mean square error of approximation

df

degrees of freedom of the model

N

sample size

conf.level

desired confidence level (e.g., .90, .95, .99)

alpha.lower

the Type I error rate for the lower tail

alpha.upper

the Type I error rate for the upper tail

Details

Provides a confidence interval for the population root mean square error of approximation (RMSEA) using the noncentral chi-square distribution (e.g., Steiger & Lind, 1980).

Value

returns the upper and lower limit as well as the observed value of the RMSEA.

Author(s)

Ken Kelley (University of Notre Dame; KKelley@ND.Edu)

References

Steiger, J. H., & Lind, J. C. (1980). Statistically-based tests for the number of common factors. Paper presented at the annual Spring meeting of the Psychometric Society, Iowa City, IA.


MBESS documentation built on Sept. 19, 2022, 5:05 p.m.