CATConfig-class: CAT configuration
In RSCAT: Shadow-Test Approach to Computerized Adaptive Testing

An S4 Class to represent parameters of the CAT configuration.

solverConfig: an instance of the S4 class SolverConfig for the MIP solver configuration.
initialTheta: the initial ability theta value.
scalingConstant: the constraint to scale a discrimination coefficient. estimated with the logistic model to the normal metric.
itemSelectionMethod: a character string specifying the item selection method.
scoreMethodConfig: a rJava jobjRef object for CAT scoring method configuration. It is generated by the function scoreMethodConfig.
exposureControlType: a character string specifying the exposure control type. "None" to disable exposure control, "Item" for item-level exposure control, and "Passage" for passage-level exposure control.
exposureControlRate: an integer value specifying the exposure goal rate.
lValue: a non-negative integer specifying the nuumber of items to be randomlized.