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ItemRest

ItemRest is an R package developed to automate item removal strategies in Exploratory Factor Analysis (EFA).
It helps researchers identify low-quality items using statistical criteria and simulate the impact of different removal combinations on the factor structure and internal consistency of the scale.

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Install

install.packages('ItemRest')

Monthly Downloads

145

Version

0.2.3

License

MIT + file LICENSE

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Repository

https://github.com/ahmetcaliskan1987/ItemRest

Maintainer

Ahmet Çalışkan

Last Published

October 9th, 2025

Functions in ItemRest (0.2.3)

cor_matrix_custom

Calculate a correlation matrix.

Evaluate Item Removal Strategies for Exploratory Factor Analysis (EFA)

print.itemrest_result

Print method for itemrest_result class

get_combinations

Generate combinations of items to remove.

determine_n_factors

Determine the number of factors using Parallel Analysis.

Sort item IDs numerically.

descriptive_stats

Calculate basic descriptive statistics for a dataset.

Test removal strategies and build a summary table.

Run a custom EFA.