Measurement Error, Multidimensionality, and Scale Shrinkage: A Reply to Yen and Burket

Yen and Burket (1997) provided a critical analysis of the work by Camilli (1988) regarding scale shrinkage, and suggested that shrinkage in vertical equating cannot be understood apart front multidimensionality. In this response, select research on reliability, multidimensionality and scale shrinkage are reviewed. These perspectives are then integrated with issues of practical importance to educators.