The symptom discounting effect: what to do when negative genetic test results become risk factors for alcohol use disorder.

There was no main effect of condition, p = 0.802, η p 2 < 0.01, but there was a marginally significant interaction effect, F( 1, 156) = 3.733, p = 0.055, η p 2 = 0.023, because while participants in both conditions rated their likelihood of becoming an alcoholic as lower at post-test than at pre-test, the decrease was greater in the No-Education condition (mean post-test vs. pre-test difference of 10.29, t (78) = 3.59, p < 0.001, d = 0.41) than in the Alternative-Cause condition (mean post-test vs. pre-test difference of 3.68, t (78) = 1.98, p = 0.051, d = 0.22).

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