Can integrity be inferred from a Big5 personality score?
Yes. Deniz Ones a Turkish-American researcher, when she was at the University of Minnesota, did a huge meta-analysis of people who had taken Big Five test on the one hand and had also taken integrity test on the other like the stamp and honesty scales and things like that. And she found a multiple R of 0.99, which is outrageously high between the scores on integrity test and scores on N, A, and C, that Jane just mentioned, low N, high A, high C, correlate 0.99 the scores on integrity tests.
So we regard integrity as a blend of those three traits. If you have all those three traits together, a person with those three traits is likely to have a reputation for integrity.