Collection of convenience functions to make working with
    administrative records easier and more consistent. Includes functions to
    clean strings, and identify cut points. Also includes three example data 
    sets of administrative education records for learning how to process records 
    with errors.

A set of functions to estimate capture probabilities and
  densities from multipass pass removal data.

Functions for an assortment of factor analysis-related
    procedures, including eleven procedures for determining the number of 
    factors; for factor analysis with multiple options for methods of extraction 
    and rotation; for bifactor analysis; for extension factor analysis; 
    options for running the analyses using either 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; wrapper 'lavaan'-based functions for factorial invariance 
    and exploratory structural equation modeling; 
    functions for the factorability of a correlation matrix,
    for the congruences between factors from different datasets, for the 
    assessment of local independence, for the assessment of factor solution 
    complexity, for 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, <doi:10.3758/bf03200807>);
    O'Connor (2001, ISSN:0146-6216).

Performs parallel analysis (Timmerman & Lorenzo-Seva, 2011 
    <doi:10.1037/a0023353>) and hull method (Lorenzo-Seva, Timmerman, & Kiers, 
    2011 <doi:10.1080/00273171.2011.564527>) for assessing the dimensionality
    of a set of variables using minimum rank factor analysis (see ten Berge & 
    Kiers, 1991 <doi:10.1007/BF02294464> for more information). The package 
    also includes the option to compute minimum rank factor analysis by 
    itself, as well as the greater lower bound calculation.