Recall that most uses of factor analysis operate on
the correlation matrix. Often the scaling of behavioral and
social science variables is arbitrary so factoring based
on covariances is not needed.
In many instances, it would not be problematic to factor items with
different response scales.
What is the nature of your data? What are you thinking of using
factor analysis to achieve?
Art Kendall
Social Research Consultants
On 11/13/2011 6:05 AM, abdalla alsmadi wrote:
Hi
is it ok to run the factor analysis if the items have
diferents scoring scale 1-4 1-5 1-9 ?
what are your suggestions??
thanks a lot
abdalla alsmadi
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Art Kendall
Social Research Consultants