Estimating the Joint Probability Density for Index Construction: Some Simplifications Using the TWEAK as Example.

Table 4 shows that men had more than 2 fold higher odds of reporting “≥ 6” to the Tolerance item than did women after controlling for total TWEAK‐IRT scores; however, the result did not quite reach statistical significance ( p = 0.07). 4 Discussion Results showed that JPD scores generated through a random selection of 4 dependency factorizations or through backward selection of a single factorization produced results very similar to those produced from estimating and averaging all 120 permutations of the chain rule factorization.

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All 6 scoring approaches identified differences in men's TWEAK scores by alcohol use diagnosis ( p s ≤ 0.02); the 3 JPD approaches did not reach statistical significance in the women.

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