- #1
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Hi All,
Say we have our ordered non-continuous variables to perform Polychoric Analysis ( finding the
Polychoric correlation coefficient)
According to the theory, we will find this way, the standard Person correlation coefficient
between the underlying continuous latent variables ( Non-continuous ordered variables are
observations of these continuous latent variables; e.g., symptoms of depression, anxiety, etc.).
There is a result whereby there are just two underlying latent variables. I am just not clear
on what this means that there are just two underlying latent variables; before of, or while performing
the Polychoric analysis, we get a correlation matrix. From the correlation matrix we can do standard Factor
Analysis. But, what does it mean we just get two factors? Do we mean the correlation matrix will just have
two eigenvalues larger than 1? Or will all variables load along just two main factors?
Thanks.
Say we have our ordered non-continuous variables to perform Polychoric Analysis ( finding the
Polychoric correlation coefficient)
According to the theory, we will find this way, the standard Person correlation coefficient
between the underlying continuous latent variables ( Non-continuous ordered variables are
observations of these continuous latent variables; e.g., symptoms of depression, anxiety, etc.).
There is a result whereby there are just two underlying latent variables. I am just not clear
on what this means that there are just two underlying latent variables; before of, or while performing
the Polychoric analysis, we get a correlation matrix. From the correlation matrix we can do standard Factor
Analysis. But, what does it mean we just get two factors? Do we mean the correlation matrix will just have
two eigenvalues larger than 1? Or will all variables load along just two main factors?
Thanks.