When can a single variable be more accurate in binary choice than multiple sources of information? We derive, analytically, the probability that a single variable (SV) will correctly predict one of two choices when both criterion and predictor are continuous variables. We further provide...

People experience difficulty in facing tradeoffs in multi-attribute choice. However, to what extent do they need to face these tradeoffs explicitly? We examine choices by simple tradeoff - avoiding models in environments where "true" preferences are linear and attributes are characterized by...