Comprehensive academic achievement tests are routinely used by school psychologists in psycho-educational assessment batteries to identify learning disabled students. A variety of assessment measures are used across age groups to determine if a discrepancy exists between academic achievement and intellectual functioning; however, among the most…

Three levels of a mathematics computation test were equated using the Rasch model. Sixth, seventh, and eighth graders were administered different levels of the test. Lack of consistency among equatings suggested that the Rasch model did not produce a satisfactory vertical equating of this computation test. (Author/RD)

Differential item performance (DIP) is discussed as a concept that does not necessarily imply item bias or unfairness to subgroups of examinees. With curriculum-based achievement tests, DIP is presented as a valid reflection of group differences in requisite skills and instruction. Using data from a national testing of the ACT Assessment, this…

A detailed description of five latent structure models of achievement measurement is presented. The first project paper, by David L. McArthur, analyzes the history of mental testing to show how conventional item analysis procedures were developed, and how dissatisfaction with them has led to fragmentation. The range of distinct conceptual and…

Responding to publicity about declining computation scores on standardized tests, the author conducted a study comparing October with May testing and timed with untimed tests. He concluded that students today are able to compute but do so more slowly than earlier students and earn higher scores on applications and concepts. (SD)

The viewpoint is expressed that adding to test reliability by either selecting a more homogeneous set of items, restricting the range of item difficulty as closely as possible to the most efficient level, or increasing the number of items will not add to test validity and that there is considerable danger that efforts to increase reliability may…

During the past few years the problem of bias in testing has become an increasingly important issue. In most research, bias refers to the fair use of tests and has thus been defined in terms of an outside criterion measure of the performance being predicted by the test. Recently however, there has been growing interest in assessing bias when such…

In order to screen out items which may be biased against some ethnic group prior to the final selection of items in test construction, a statistical technique for assessing item bias was developed. Based on a theoretical formulation of R. B. Darlington, the method compares the performance of individuals who belong to different ethnic groups, but…

A study compared college students' performance on complex multiple-choice tests with scores on multiple true-false clusters. Researchers concluded that the multiple-choice tests did not accurately measure students' knowledge and that cueing and guessing led to grade inflation. (PP)

Scores from the Stanford Achievement Tests administered to 50,000 students in Palm Beach County, Florida, were studied in order to determine whether the speeded nature of the reading comprehension subtest was related to inconsistencies in the score profiles. Specifically, the probable effect of random guessing was examined. Reading scores were…

The author surveys literature and practice, primarily in Great Britain and the United States, about multiple-choice testing, comments on criticisms, and defends the state of the art. Varous item types, item writing, test instructions and scoring formulas, item analysis, and test construction are discussed. An extensive bibliography is appended.…

The authors argue that personnel who select standardized achievement tests have been led to believe that the major achievement test batteries differ very little in terms of the topics they test; but that the content covered by these major tests is different, and that such differences have consequences for instructional content. To test this…

This paper considers the question of bias in group administered academic achievement tests, bias which is inherent in the instruments themselves. A body of data on the test of performance of three disadvantaged minority groups--northern, urban black; southern, rural black; and, southwestern, Mexican-Americans--as tryout samples in contrast to…

An experiment investigated the extent to which the results of out-of-level testing may be biased because the child given an out of level test may have had a significantly different curriculum than the children given in-level tests. Item analysis data suggested this was unlikely. (CTM)

The problem of measuring growth across the target grade and, typically, the two adjacent grades, concerns most developers of standardized, norm-referenced achievement tests, particularly at the item selection stage. Opinion is divided on whether to retain or drop items that do not get easier from grade to grade. The controversy has focused on…