Analyses of 10 raters' reasoning during think-aloud interviews provided evidence to support a model of the fundamental processes involved in rating standards-based, nonprescriptive portfolios. This process model provides a framework within which to conceptualize sound-rater reasoning and to identify reasoning that distorts the meaning of scores.…

Studied the amount of measurement error in a state's performance-based writing task as it relates to high-stakes decision reproducibility. Using 175 eighth-grade writing samples, the study finds moderate correlations between the two raters' scores, with significant differences for the rates for the handwritten, but not the typed, essays.(SLD)