cfaOne: Dynamic fit index (DFI) cutoffs for one-factor CFA models

In melissagwolf/dynamic: DFI Cutoffs for Latent Variable Models

Dynamic fit index (DFI) cutoffs for one-factor CFA models

Description

This function generates DFI cutoffs for one-factor CFA models using ML estimation. The default argument is a singular argument: a lavaan object from the cfa function. The function can also accommodate manual entry of the model statement and sample size.

The app-based version of this function can be found at dynamicfit.app.

Usage

cfaOne(
  model,
  n = NULL,
  plot = FALSE,
  manual = FALSE,
  estimator = "ML",
  reps = 500
)

## S3 method for class 'cfaOne'
print(x, ...)

Arguments

model	This can either be a lavaan object from the cfa function, OR a model statement written in lavaan model.syntax with standardized loadings.
n	If you entered a lavaan object for model, leave this blank. Otherwise, enter your sample size (numeric).
plot	Displays distributions of fit indices for each level of misspecification.
manual	If you entered a lavaan object, keep this set to FALSE. If you manually entered standardized loadings and sample size, set this to TRUE.
estimator	Which estimator to use within the simulations (enter in quotes). The default is ML.
reps	The number of replications used in your simulation. This is set to 500 by default in both the R package and the corresponding Shiny App.
x	cfaOne object
...	other print parameters

Value

Dynamic fit index (DFI) cutoffs for SRMR, RMSEA, and CFI.

Author(s)

Melissa G Wolf & Daniel McNeish

Maintainer: Melissa G Wolf <[e-mail]>

Examples

#Lavaan object example (manual=FALSE)
dat <- lavaan::HolzingerSwineford1939
lavmod <- "F1 =~ x1 + x2 + x3 + x4 + x5 + x6 + x7 + x8 + x9"
fit <- lavaan::cfa(lavmod,dat)
cfaOne(fit)

#Manual entry example for a sample size of 300 (manual=TRUE)
manmod <- "F1 =~ .602*Y1 + .805*Y2 + .857*Y3 + .631*Y4 + .345*Y5 + .646*Y6"
cfaOne(model=manmod,n=300,manual=TRUE)

melissagwolf/dynamic documentation built on June 29, 2024, 6:24 p.m.