Set of model factors.

Table of all major model factors, identified by a label and short description. An observer model is built by choosing a model level for decision making and then optionally adding other components. For each model component the number of free parameters is specified. A ‘’ means that a parameter is specified independently for training and test sessions; otherwise parameters are shared across sessions. See main text and Methods for the meaning of the various parameters. (*) These additional components appear in the comparison of alternative models of decision making.