This article describes the findings of studies conducted on a large-scale, classroom-based performance assessment of literacy for the early grades designed to provide information that is useful for reporting, as well as teaching. Technical studies found the assessment to be a promising instrument that is reliable and valid. Follow-up studies of…

The two articles in this special section, combined with two previous articles, discuss the use of portfolios in large-scale assessment. Ten years ago, there was great interest in portfolio assessment in state testing programs, but no large-scale program relies on portfolios at the present time. These articles continue to consider their uses. (SLD)

Reviews developments in educational assessment and in journals devoted to assessment during the editor's tenure with this journal, with a special focus on the place of performance assessment. Discusses the problem of generalizability in many new forms of assessment. (SLD)

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.…

Explores issues of whose work is actually being evaluated when raters outside the classroom context make judgments about students based on work composed with the support of peers, teachers, and parents. Data from an evaluation of a statewide assessment and a study of scoring elementary school writing portfolios illustrate the issues. (SLD)