17 lines
1 KiB
Text
17 lines
1 KiB
Text
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A general purpose toolbox for personality, psychometric theory and
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experimental psychology. Functions are primarily for multivariate
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analysis and scale construction using factor analysis, principal
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component analysis, cluster analysis and reliability analysis,
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although others provide basic descriptive statistics. Item Response
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Theory is done using factor analysis of tetrachoric and polychoric
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correlations. Functions for analyzing data at multiple levels include
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within and between group statistics, including correlations and factor
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analysis. Functions for simulating and testing particular item and
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test structures are included. Several functions serve as a useful
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front end for structural equation modeling. Graphical displays of
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path diagrams, factor analysis and structural equation models are
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created using basic graphics. Some of the functions are written to
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support a book on psychometric theory as well as publications in
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personality research. For more information, see the
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personality-project.org/r web page.
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