Categorical growth models describe examinee growth in terms of performance-level category transitions, which implies that some percentage of examinees will be misclassified. This paper introduces a new procedure for estimating the classification accuracy of categorical growth models, based on Rudner's classification accuracy index for item…

Using an argument-based approach to validation, this study examines the quality of teacher judgments in the context of a standards-based classroom assessment of English proficiency. Using Bachman's (2005) assessment use argument (AUA) as a framework for the investigation, this paper first articulates the claims, warrants, rebuttals, and backing…

Analyzes the three major inferences involved in interpretation of performance assessments: (1) scoring of the observed performances; (2) generalization to a domain of assessment performances like those included in the assessment; and (3) extrapolation to the large performance domain of interest. Suggests ways to improve the validity of performance…

Describes an approach to addressing issues of validity of inferences and the extrapolation of inferences to target domains beyond the assessment for alternative assessments. Makes the case that in both language testing and educational assessment the roles of language and content knowledge must be considered, and that the design and development of…

Introduces the articles of this theme issue focusing on the involvement of key stakeholder groups in the validation of large-scale high-stakes assessments. Each makes a unique but complementary contribution to the understanding of the demands of a comprehensive validation effort. (SLD)

Six distinguishable aspects of construct validity are discussed as they apply to performance assessment, emphasizing content, substantive, structural, generalizability, external, and consequential aspects. Taken together, these aspects provide a way to address validity questions in score interpretation and use. (SLD)

Provides a general framework for examining the consequences of assessment programs, especially statewide programs that intend to improve student learning by holding schools accountable. The framework is intended for use with programs using performance-based tasks but can be used with programs using traditional item formats as well. (SLD)

How portfolio-based conclusions about student learning might be used to communicate with audiences outside the classroom is explored. Procedures and criteria for investigating validity in portfolio use are discussed. Ten portfolios from an eighth grade language arts class are used as an example. (SLD)