A behavioral health survey confidence annotation machine determines a degree of confidence in the reliability of a survey taker's responses given in a behavioral health survey. The degree of confidence reflects consistencies in the survey results themselves and data about the survey taker. The degree of confidence can also reflect consistency between results of multiple instances of the survey taken contemporaneously, i.e., within a single session with the survey taker. Culling of health survey results produces a corpus of health survey result data more greater confidence in the reliability of its results. Survey takers whose health survey results are consistently unreliable can be identified.
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