I read two of your papers describing the generalization of the Ferguson's formula for tests with multiple response options. The rationale and methodology of computing delta is amply clear. I find this method very useful for those interested in psychometric evaluation of tests/scales in general and clinical tools in particular. However, the manual calculation even through electronic spreadsheets may be time consuming. Is there any SPSS macro, syntax or Excel macro or any other software (other than R codes as I am not well versed with R) for computing delta?

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