Data from the California Learning Assessment Systemare used to examine certain characteristics of testsdesigned as the composites of items of different modes.The characteristics include rater severity, test information,and definition of the latent variable. Three differentassessment...

Research and case studies have emphasized the role Early Adopters play (as gatekeepers and disseminators) in the diffusion of new technologies and innovations (Rogers & Cartano, 1962; Robertson, 1971; Rogers, 1983; Flynn & Goldsmith 1993). Marketers have acknowledge the need to identify, profile, utilize...