Recently, there has been an effort to simplify the theory and application of choice RT models. We present the simplest complete model so far - a set of linear, independent, ballistic accumulators. The "linear-BA" model accounts for RT distributions, the speed-accuracy tradeoff, and changes in RT and accuracy with decision difficulty. This model is so simple that it's distributions can be derived analytically, and these derivations apply to choices between any number of alternatives. We demonstrate that the model can fit two-choice data about as well as the current field leaders, and can also fit multi-choice alternative data that some other models cannot. |