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)

Three levels of the Iowa Tests of Basic Skills were studied to disclose the possible existence of sex bias in mathematics test items. Two mathematics tests (mathematical concepts and mathematics problem solving) and two comparison verbal tests (vocabulary and reading) were selected for analysis at three levels--grades 3, 6, and 8. Samples of 480…

Content analyses for sex bias were conducted on items from three widely-used achievement tests which together span the grade levels 1-12. A significant but modest correlation was found between an item's content bias and performance on that item by male and female students. (SJL)

To determine if equal raw scores have the same "meaning" for students tested "in" and "out-of-level," four "out-of-level" grade groups who took the Vocabulary, Reading, and Mathematics Concepts subtests of the Iowa Tests of Basic Skills typically administered to fifth graders were compared to "in…

The preparation and use of an objective strength analysis report (OSAR) from the Iowa Test of Basic Skills (ITBS) are described. The OSAR was designed to answer two needs: (1) a format which allows the school to easily answer the question "which reading objectives need more emphasis and/or better materials or techniques in order to raise its…

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…

The content of selected major achievement tests is examined for bias in the frequency of references to the male and the female sex. The performance of males and females is contrasted on each item considered, and the relationships between item content and the performance differences is surveyed. The tests used in this study include the Metropolitan…

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)

This paper reports an investigation of inferencing in Form Five of the Reading Comprehension component of the Iowa Tests of Basic Skills. The first step in the investigation consisted of an analysis of the language of the test to determine how the inferencing strategies employed might serve to mask answers. This preliminary analysis suggested that…

Multiple-choice standardized achievement tests of English vocabulary and reading comprehension and of mathematics were administered to samples of 592 grade eight students and 615 grade five students. Two forms of each test unit were prepared. The control groups took forms containing items with four responses, while the experimental groups took…

This report summarizes evaluation results on the costs and benefits of administering ACT's EXPLORE assessment in AISD during its pilot year in 2000-2001.

The Iowa Tests of Basic Skills were administered to over 600 black and white students in grades six through nine, to determine if the test showed bias against minorities. Outliers were identified from test results. Outliers are items which differ from the central core of test items because they fall outside the range expected from a random…