This report reviews the major international and regional large-scale educational assessments, including international surveys, school-based surveys and household-based surveys. The report compares and contrasts the cognitive and contextual data collection instruments and implementation methods used by the different assessments in order to identify…

In many practical testing situations, alternate test forms from the same testing program are not strictly parallel to each other and instead the test forms exhibit small psychometric differences. This article investigates the potential practical impact that these small psychometric differences can have on expected classification accuracy. Ten…

A computer adaptive test (CAT) is a delivery methodology that serves the larger goals of the assessment system in which it is embedded. A thorough analysis of the assessment system for which a CAT is being designed is critical to ensure that the delivery platform is appropriate and addresses all relevant complexities. As such, a CAT engine must be…

This paper provides a history of ETS's role in developing assessment instruments and psychometric procedures for measuring change in large-scale national assessments funded by the Longitudinal Studies branch of the National Center for Education Statistics. It documents the innovations developed during more than 30 years of working with…

In operational testing programs using item response theory (IRT), item parameter invariance is threatened when an item appears in a different location on the live test than it did when it was field tested. This study utilizes data from a large state's assessments to model change in Rasch item difficulty (RID) as a function of item position change,…

The equating process links scores from different editions of the same test. For testing programs that build nearly parallel forms to the same explicit content and statistical specifications and administer forms under the same conditions, the linkings between the forms are expected to be equatings. Score equity assessment (SEA) provides a useful…

This document describes the breadth of the research that the ETS (Educational Testing Service) Research & Development division is conducting in 2010. This portfolio will be updated in early 2011 to reflect changes to existing projects and new projects that were added after this document was completed. The research described in this portfolio falls…

Educational assessment and, more broadly, educational research in the United States have entered into an era characterized by a dramatic increase in the prevalence and importance of test score use in accountability systems. This volume covers a selection of contemporary issues about testing science and practice that impact the nation's public…

This document describes the breadth of the research being conducted in 2008 by the Research and Development Division at Educational Testing Service (ETS). The research described falls into three large categories: (1) Research supported by the ETS research allocation; (2) Research funded by testing programs at ETS; and (3) Research funded by…

Presents conclusions of an independent measurement expert that the Texas Assessment of Academic Skills (TAAS) was constructed according to acceptable professional standards and tests curricular material considered by the Texas Board of Education important for graduates to have mastered. Also supports the validity and reliability of the TAAS and…

This paper discusses the use of two theories of item analysis and test construction, their strengths and weaknesses, and applications to the design of the Hawaii State Test of Essential Competencies (HSTEC). Traditional analyses of the data collected from the HSTEC field test were viewed from the perspectives of item difficulty levels and item…

Challenges to classical psychometric theory are examined in the context of a broader range of fundamental, derived, and intuitive measurements in psychology; the challenges include content-referenced testing, latent trait theory, and generalizability theory. A taxonomy of psychological measurement is developed, based on: (1) purposes of…

This brief makes the case for thoughtful district- or school-driven assessment systems that complement and go beyond what statewide testing systems are able to accomplish. It describes important attributes of model local assessment programs and presents the necessary steps for building a local assessment program that will elicit information that…

Note that judgments about the relationship of test items to actual job duties have generally been made as a single comparison, proposes a model for analyzing the accuracy of translations for each step of the process of test development for use in personnel administration, and suggests scaling procedures appropriate for the various judgments. (JM)

This procedures manual for the North Carolina Test Development Program details the tasks involved in test development. The basic steps are described in an introductory section; they are (1) to specify the institutional objectives of the curriculum and ensure their instructional validity; and (2) to specify the characteristics, such as the purpose…