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psych : Procedures for Psychological, Psychometric, and Personality Research

Package: psych
Version: 1.6.4
Date: 2016-04-30
Title: Procedures for Psychological, Psychometric, and Personality
Research
Author: William Revelle <revelle@northwestern.edu>
Maintainer: William Revelle <revelle@northwestern.edu>
Description: A general purpose toolbox for personality, psychometrics and experimental psychology. Functions are primarily for multivariate analysis and scale construction using factor analysis, principal component analysis, cluster analysis and reliability analysis, although others provide basic descriptive statistics. Item Response Theory is done using factor analysis of tetrachoric and polychoric correlations. Functions for analyzing data at multi-levels include within and between group statistics, including correlations and factor analysis. Functions for simulating particular item and test structures are included. Several functions serve as a useful front end for structural equation modeling. Graphical displays of path diagrams, factor analysis and structural equation models are created using basic graphics. Some of the functions are written to support a book on psychometrics as well as publications in personality research. For more information, see the personality-project.org/r webpage.
License: GPL (>= 2)
Imports: mnormt, parallel, stats, graphics, grDevices, methods
Suggests: GPArotation, sem, lavaan, Rcsdp, graph, Rgraphviz
LazyData: true
URL: http://personality-project.org/r/psych
http://personality-project.org/r/psych-manual.pdf
NeedsCompilation: no
Packaged: 2016-05-12 02:28:42 UTC; WR
Depends: R (>= 2.10)
Repository: CRAN
Date/Publication: 2016-05-12 14:47:45

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