factor analysis

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factor analysis

abdalla alsmadi
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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Re: factor analysis

Art Kendall
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