Troubleshooting
Problem
I am setting up a factor analysis with the SPSS Factor procedure, under Analyze>Data Reduction>Factor, and click on the Rotation button to choose a factor rotation method. If I click on 'Direct Oblimin' under Method, then the Delta box becomes enabled. The pop-up Help box for Delta says "When delta = 0 (the default), solutions are most oblique. As delta becomes more negative, the factors become less oblique. To override the default delta of 0, enter a number less than or equal to 0.8." Please provide a fuller description of how this Delta parameter affects the direct oblimin rotation and how I would choose a value for delta. If factors become less oblique as delta becomes more negative, and if solutions are 'most oblique' when delta = 0, what is the effect of a delta between 0 and 0.8? What is the basis for the upper limit of 0.8?
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Historical Number
33361
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Document Information
Modified date:
16 April 2020
UID
swg21475052