dimensionStability {EGAnet}

Dimension Stability Statistics from bootEGA

Description

Based on the bootEGA results, this function computes the stability of dimensions. Stability is computed by assessing the proportion of times the original dimension is exactly replicated in across bootstrap samples

Usage

dimensionStability(bootega.obj, IS.plot = TRUE, structure = NULL, ...)

Arguments

bootega.obj

A bootEGA object

IS.plot

Boolean (length = 1). Should the plot be produced for item.replication? Defaults to TRUE

structure

Numeric (length = number of variables). A theoretical or pre-defined structure. Defaults to NULL or the empirical EGA result in the bootega.obj

...

Additional arguments. Used for deprecated arguments from previous versions of itemStability

Value

Returns a list containing:

dimension.stability

A list containing:

• structural.consistency — The proportion of times that each empirical EGA dimension exactly replicates across the bootEGA samples

• average.item.stability — The average item stability in each empirical EGA dimension

item.stability

Results from itemStability

Author(s)

Hudson Golino <hfg9s at virginia.edu> and Alexander P. Christensen <[e-mail]>

References

Original implementation of bootEGA
Christensen, A. P., & Golino, H. (2021). Estimating the stability of the number of factors via Bootstrap Exploratory Graph Analysis: A tutorial. Psych, 3(3), 479-500.

Conceptual introduction
Christensen, A. P., Golino, H., & Silvia, P. J. (2020). A psychometric network perspective on the validity and validation of personality trait questionnaires. European Journal of Personality, 34(6), 1095-1108.

Examples

# Load data
wmt <- wmt2[,7:24]

## Not run: 
# Estimate bootstrap EGA
boot.wmt <- bootEGA(
  data = wmt, iter = 500,
  type = "parametric", ncores = 2
)
## End(Not run)

# Estimate stability statistics
dimensionStability(boot.wmt)