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<table width="100%" summary="page for Gorsuch"><tr><td>Gorsuch</td><td align="right">R Documentation</td></tr></table>

<h2>Example data set from Gorsuch (1997) for an example factor extension.
</h2>

<h3>Description</h3>


<p>Gorsuch (1997) suggests an alternative to the classic Dwyer (1937) factor extension technique.  This data set is taken from that article.  Useful for comparing <code>link{fa.extension}</code> with and without the correct=TRUE option.  
</p>


<h3>Usage</h3>

<pre>data(Gorsuch)</pre>


<h3>Details</h3>

<p>Gorsuc (1997) suggested an alternative model for factor extension.  His method is appropriate for the case of repeated variables.  This is handled in <code>link{fa.extension}</code> with correct=FALSE
</p>


<h3>Source</h3>

<p>Richard L. Gorsuch (1997) New Procedure for Extension Analysis in Exploratory Factor Analysis. Educational and Psychological Measurement, 57, 725-740.
</p>


<h3>References</h3>


<p>Dwyer, Paul S. (1937), The determination of the factor loadings of a given test from the known factor loadings of other tests. Psychometrika, 3, 173-178
</p>


<h3>Examples</h3>

<pre>
data(Gorsuch)

Ro &lt;- Gorsuch[1:6,1:6]
Roe &lt;- Gorsuch[1:6,7:10]
fo &lt;- fa(Ro,2,rotate="none")
fa.extension(Roe,fo,correct=FALSE)
</pre>


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