This study investigated the impact of scoring polytomous items later on measurement precision, classification accuracy, and test security in mixed-format adaptive testing. Utilizing the shadow test approach, a simulation study was conducted across various test designs, lengths, number and location of polytomous item. Results showed that while…

Recently, adaptive test approaches have become a viable alternative to traditional fixed-item tests. The main advantage of adaptive tests is that they reach desired measurement precision with fewer items. However, fewer items mean that each item has a more significant effect on ability estimation and therefore those tests are open to more…

The computerized adaptive tests (CAT) apply an adaptive process in which the items are tailored to individuals' ability scores. The multidimensional CAT (MCAT) designs differ in terms of different item selection, ability estimation, and termination methods being used. This study aims at investigating the performance of the MCAT designs used to…

Assembling equivalent test forms with minimal test overlap across forms is important in ensuring test security. Chen and Lei (2009) suggested a exposure control technique to control test overlap-ordered item pooling on the fly based on the essence that test overlap rate--ordered item pooling for the first t examinees is a function of test overlap…

Numerous short forms of the Minnesota Multiphasic Personality Inventory have been proposed in the last 15 years. In each case, the initial enthusiasm has been replaced by the questions about the clinical utility of the abbreviated version. Argues that the statistical properties of the test and reduced reliability due to shortening the scales…

The purpose of this paper is to highlight some psychometric cautions that should be observed when seeking to develop short form versions of tests. Several points are made: (1) score reliability is impacted directly by the characteristics of the sample and testing conditions; (2) sampling error has a direct influence on reliability and factor…

A brief version of the instrument developed by S. Schwartz (1992, 1994) to measure the structure and content of human values was developed. Studies with 199 adults and 420 adults support the reliability of scores produced by the brief inventory's four three-item scales. Uses of the brief form are discussed. (SLD)

This handbook will assist principals and school testing coordinators in implementing the spring 2007 administration of the Developmental Reading Assessment (DRA). Information regarding administration timeline, reporting, process, online tools and contact personnel is discussed. Contents include: (1) Scheduling; (2) Identify Primary Test…

When determining criterion-referenced test length, problems of guessing are shown to be more serious than expected. A new method of scoring is presented that corrects for guessing without assuming that guessing is random. Empirical investigations of the procedure are examined. Test length can be substantially reduced. (Author/CM)

As adaptive testing moves toward operational implementation in large scale testing programs, where it is important that adaptive tests be as parallel as possible to existing linear tests, a number of practical issues arise. This paper concerns three such issues. First, optimum item pool size is difficult to determine in advance of pool…

The Minnesota Teacher Attitude Inventory (MTAI) consists of 150 items in its original form. For practical and economical reasons, seven shorter versions formed from the 150 items and based on previous studies were tested on their validity and discrimination value. Responses of 90 teacher trainees, who in 1982 were enrolled at the Institute of…

A series of computer simulations was run to measure the relationship between testlet validity and the factors of item pool size and testlet length for both adaptive and linearly constructed testlets. Results confirmed the generality of earlier empirical findings of H. Wainer and others (1991) that making a testlet adaptive yields only marginal…

The number of rating items preferred by students on an instructional evaluation instrument was investigated. The median length preferred was 25 items. (Author/GK)

The development of a short form of the Raven Advanced Progressive Matrices Test is reported. Results from 3 studies with 663 college students indicate that the short form demonstrates psychometric properties similar to the long form yet requires a substantially shorter administration time. (SLD)

The National Conference of Bar Examiners commissioned American College Testing, Inc., to help them in the development and evaluation of a performance test for use in bar admissions decisions. Because it was recognized that candidate perceptions would provide valuable information, a candidate-perception questionnaire was developed to be…