Procedures for Psychological, Psychometric, and Personality Research
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. 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.

Procedures for Psychological, Psychometric, and Personality
Research
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. 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.

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. 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.

polycor, GPArotation, sem, MASS,graph,Rgraphviz,mvtnorm,
Rcsdp

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.
MASS, GPArotation, graph, Rgraphviz,mvtnorm, polycor, sem,
Rcsdp, lavaan