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EFA.dimensions (version 0.1.8.6)

Exploratory Factor Analysis Functions for Assessing Dimensionality

Description

Functions for eleven procedures for determining the number of factors, including functions for parallel analysis and the minimum average partial test. There are also functions for conducting principal components analysis, principal axis factor analysis, maximum likelihood factor analysis, image factor analysis, and extension factor analysis, all of which can take raw data or correlation matrices as input and with options for conducting the analyses using Pearson correlations, Kendall correlations, Spearman correlations, gamma correlations, or polychoric correlations. Varimax rotation, promax rotation, and Procrustes rotations can be performed. Additional functions focus on the factorability of a correlation matrix, the congruences between factors from different datasets, the assessment of local independence, the assessment of factor solution complexity, internal consistency, and for correcting Pearson correlation coefficients for attenuation due to unreliability. Auerswald & Moshagen (2019, ISSN:1939-1463); Field, Miles, & Field (2012, ISBN:978-1-4462-0045-2); Mulaik (2010, ISBN:978-1-4200-9981-2); O'Connor (2000, ); O'Connor (2001, ISSN:0146-6216).

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Version

Install

install.packages('EFA.dimensions')

Monthly Downloads

1,282

Version

0.1.8.6

License

GPL (>= 2)

Maintainer

Brian O'Connor

Last Published

February 4th, 2026

Functions in EFA.dimensions (0.1.8.6)

EFA

Exploratory factor analysis
COMPLEXITY

Factor solution complexity
EMPKC

The empirical Kaiser criterion method
CORRECTED_CORRELS

Corrected Pearson correlation coefficients
EXTENSION_FA

Extension factor analysis
CONGRUENCE

Factor solution congruence
PARALLEL

Parallel analysis of eigenvalues (random data only)
POLYCHORIC_R

Polychoric correlation matrix
MISSING_INFO

Missing value statistics
FACTORABILITY

Factorability of a correlation matrix
PCA

Principal components analysis
PROCRUSTES

Procrustes factor rotation
LOCALDEP

Local dependence
NEVALSGT1

The number of eigenvalues greater than 1
INTERNAL_CONSISTENCY

Internal consistency reliability coefficients
MAP

Velicer's minimum average partial (MAP) test
SCREE_PLOT

Scree plot of eigenvalues
SALIENT

Salient loadings criterion for the number of factors
ROOTFIT

Factor fit coefficients
RAWPAR

Parallel analysis of eigenvalues (for raw data)
RECODE

Recode values in a vector
SESCREE

Standard Error Scree test
data_Harman

Correlation matrix from Harman (1967, p. 80).
data_TabFid

data_TabFid
data_RSE

Item-level dataset for the Rosenberg Self-Esteem scale
data_NEOPIR

data_NEOPIR
data_Field

data_Field
SMT

Sequential chi-square model tests
EFA.dimensions-defunct

Defunct functions
DIMTESTS

Tests for the number of factors
EFA_SCORES

Exploratory factor analysis scores
EFA.dimensions-package

EFA.dimensions