A two-stage testing strategy is one method of adapting the difficulty of a test to an individual's ability level in an effort to achieve more precise measurement. A routing test provides an initial estimate of ability level, and a second-stage measurement test then evaluates the examinee further. The measurement accuracy and efficiency of item…

The manual is designed to help Peace Corps language teachers design simple evaluation procedures that will: (1) help them select appropriate classroom activities; (2) encourage students to self-monitor their progress and take responsibility for learning; and (3) give insight into student aptitudes. An introductory chapter examines the relationship…

The advent of computers in educational and psychological measurement has lead to the need for algorithms for optimal assembly of tests from item banks. This paper reviews the literature on optimal test assembly and introduces the contributions to this report on the topic. Four different approaches to computerized test assembly are discussed:…

A Monte Carlo study was conducted to estimate the small sample standard errors and statistical bias of psychometric statistics commonly used in the analysis of achievement tests. The statistics examined in this research were: (1) the index of item difficulty; (2) the index of item discrimination; (3) the corrected item-total point-biserial…

This report describes the development, construction, and validation of the Preliminary Chinese Proficiency Test (Pre-CPT), a standardized, nationally-normed test of listening and reading comprehension for beginning-level native English-speaking learners of Chinese as a second language. The Pre-CPT was designed as a lower-level version of the…

Whether boys and girls perform differently on mathematics estimation items with a picture format (applied context [AC] items) compared with items with a numbers-only (NC) format was studied when effects of computational skill, conceptual knowledge, and quantitative ability were controlled. Subjects were approximately 80,000 students from grades 4…

This module contains a student manual and an instructor's manual for study of vocabulary for vocational education aimed at students with special needs. The student manual consists of quizzes that consist of matching and multiple-choice items that can be used to review the vocabulary of the unit as presented on a videotaped lesson. Answers to the…

This paper explores the comparability of item calibrations for three types of items: (1) text only; (2) text with photographs; and (3) text plus graphics when items are presented on written tests and computerized adaptive tests. Data are from five different medical technology certification examinations administered nationwide in 1993. The Rasch…

The strengths of item-response theory (IRT) are used to examine the degree of information individual test items provide, as well as to investigate how the individual item types contribute to the overall measurement accuracy of the Illinois Goal Assessment Program (IGAP) reading test. Using the graded-response model of Samejima (1969), the amount…

The robustness of a partial credit (PC) model-based computerized adaptive test's (CAT's) ability estimation to items that did not fit the PC model was investigated. A CAT program was written based on the PC model. The program used maximum likelihood estimation of ability. Item selection was on the basis of information. The simulation terminated…

A latent trait model is described that is appropriate for use with tests that measure more than one dimension, and its application to both real and simulated test data is demonstrated. Procedures for estimating the parameters of the model are presented. The research objectives are to determine whether the two-parameter logistic model more…

SCORIGHT is a very general computer program for scoring tests. It models tests that are made up of dichotomously or polytomously rated items or any kind of combination of the two through the use of a generalized item response theory (IRT) formulation. The items can be presented independently or grouped into clumps of allied items (testlets) or in…

This paper discusses the assumptions required by the item response theory (IRT) true-score equating method (with Stocking & Lord, 1983; scaling approach), which is commonly used in the nonequivalent groups with an anchor data-collection design. More precisely, this paper investigates the assumptions made at each step by the IRT approach to…

This book is written for coaches of secondary school students involved in mathematics contests. Benefits, of contests and suggestions for coaching mathematics contests are described. Sample questions are presented for the following contests: (1) Open categories, written competition; (2) Identified topics written competition; (3) Eight-person team…

The validity of the analysis of variance (ANOVA) of a split plot factorial design was investigated using a complex interaction contrast with matched two-group ability data for detecting biased items. The definition of a biased item by this method is: an item is biased if there is an item-by-group interaction when there is no group difference in…