STATE ESTIMATION DEVICE, STATE ESTIMATION METHOD, AND PROGRAM

A verification value is calculated for an estimation result. The estimation result is corrected on the basis of the calculated verification value. This allows for output of a highly reliable estimation result. If it is determined that the class to which the state of a driver belongs has transitioned continuously, the estimation result is outputted. If it cannot be determined that the class to which the state of the driver belongs has transitioned continuously, a previous estimation result is outputted instead of the latest estimation result. This allows for output of a highly reliable estimation result.