Plausible values are estimates intended to represent the distribution of measures that could produce the observed scores. They were developed for large-scale educational assessments from which group-level measures are to be obtained, but with data too thin to support individual-level measurement.

 

Winsteps is designed for individual measurement. When this is possible, then group-level reporting can be done, e.g., with PSUBTOT=. The Winsteps estimate approximates the mean of the plausible-value distribution. For Rasch software that produces plausible values, see www.rasch.org/software.htm.