Test for Indifference of Indicator
Plot confidence intervals
Wrapper and scripts for indicator exclusion procedure
Incrementally calls ind_excl_step
Plot indicator exlusion results with and without excluded indicators
One step in indicator exclusion procedure
Find an optimal p-value for SONE
Table and plot the SONE values
Simulate personality scale(s) and an outcome
Plot scenario simulation results
Simulate SONE values for scenario.
Provides item exclusion procedure, which is a formal method to test 'Indifference Of iNdicator' (ION). When a latent personality trait-outcome association is assumed, then the association strength should not depend on which subset of indicators (i.e. items) has been chosen to reflect the trait. Personality traits are often measured (reflected) by a sum-score of a certain set of indicators. Item exclusion procedure randomly excludes items from a sum-score and tests, whether the sum-score - outcome correlation changes. ION has been achieved, when any item can be excluded from the sum-score without the sum-score - outcome correlation substantially changing . For more details, see Vainik, Mottus et. al, (2015) "Are Trait-Outcome Associations Caused by Scales or Particular Items? Example Analysis of Personality Facets and BMI",European Journal of Personality DOI: <10.1002/per.2009> .