How to measure MAMBAC and predictive value

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How to measure MAMBAC and predictive value

Jonas-22
Hi!
Anyone with a good syntax or chain of commands in SPSS to measure MAMBAC
(means above means under a cut) and MAXCOV (maximum covariance)?
And, if you just want to help me save time, syntaxes for measuring positive
predictive value, negative predictive value, specificity and sensitivity.

I have a data set with N persons, and n persons have diagnosis A.
To get diagnosis A, they need to have 5 or more out of 8 possible
dichotomous criteria.

I want to check the reliability of those criteria, mainly by positive
predictive value, negative predictive value, specificity and sensitivity.
Thereafter I need to check if they are measuring a single taxonometric
property, by using the MAMBAC- and MAXCOV-procedure.

Anyone?