ss.aipe.rmsea {MBESS} | R Documentation |
Sample siza planning for population root mean square error of approximation from the Accuracy in Parameter Estimation (AIPE) perspective
ss.aipe.rmsea(RMSEA, df, width, conf.level = 0.95)
RMSEA |
population root mean square error of approximation |
df |
degrees of freedom of the model |
width |
desired confidence interval width |
conf.level |
desired confidence level (e.g., .90, .95, .99) |
Returns the necessary total sample size in order to achieve the desired degree of accuracy (i.e., the sufficiently narrow confidence interval).
Ken Kelley (University of Notre Dame; KKelley@ND.Edu)
# ss.aipe.rmsea(RMSEA=.035, df=50, width=.05, conf.level=.95)