Title: Procedures for Psychological, Psychometric, and Personality
Description: A number of routines for personality, psychometrics and
experimental psychology.  Functions are primarily for scale
construction using factor analysis, cluster analysis and
statistics. Functions for simulating particular item and test
structures are included. Several functions serve as a useful
front end for structural equation modeling.  For more
information, see the personality-project.org/r webpage.
Packaged: Thu Mar 26 14:53:26 2009; bill

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

Suggests: polycor, GPArotation, MASS,graph,Rgraphviz,mvtnorm, Rcsdp

Suggests: polycor, GPArotation, sem, MASS,graph,Rgraphviz,mvtnorm,

statistics. Item Response Theory is done using factor analysis
of tetrachoric and polychoric correlations. 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
Suggests: MASS, GPArotation, graph, Rgraphviz,mvtnorm, polycor, sem,

Description: A number of routines for personality, psychometrics and experimental psychology.   Functions are primarily for scale construction using factor 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 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.