Constructing rater and task banks for performance assessments

The purpose of this paper is to present a set of procedures based on Rasch measurement theory for construction an assessment network. An assessment network is defined as a connected system of rater and task banks. Three general classes of data collection designs are presented that can be used to calibrate an assessment network; these are complete, incomplete, and non-linked assessment networks. Carefully constructed assessment networks based on Rasch measurement theory and sound data collection designs provide the opportunity to achieve objective and fair measurements.