While curriculum-based measurement (CBM) tools for screening decisions in reading, mathematics, and written language have been well examined, tools for use in content areas (e.g., science and social studies) remain in the beginning stages of research. In this study, two alternate forms of a new CBM tool (Statement Verification for Science; SV-S),…

The relationship between academic self-concept and academic achievement in African American students who have experienced geographic mobility was the focus of this study. Specifically, this study used quantitative methods to assess African American students from counties in Iowa to obtain information about the students' relocation from urban to…

Compared performance of two polytomous item response theory models to that of the dichotomous three-parameter logistic model in equating tests composed of testlets using data from 6 tests of the Iowa Tests of Basic Skills (samples of 537 to 680 eighth graders). Results of the equating method based on polytomous models produced results that more…

This study was conducted to investigate the dimensionality of language tests by means of latent variable models for categorical data. It differs from previous studies by conducting the analysis at the level of the original items using the structural modeling approach of B. Muthen (1984) for dichotomous and ordered polytomous variables. In this…

Studied whether eighth-grade reading scores on the Iowa Tests of Basic Skills predict success on the five subtests of the Georgia High School Graduation Test. Findings for 102 high school seniors show that reading scores are statistically significantly related to all five subtests, with correlations ranging from 0.69 to 0.86. (SLD)

Primarily a longitudinal and quantitative analysis of achievement functioning, this experiment sought to identify factors which promote or impair the learning of individual children. The 683 Junior High students were divided into one of eight groups according to sex, race and whether their seventh grade Iowa Test of Basic Skills Composite score…

Results of the Vocabulary, Reading Comprehension, and Mathematics Concepts subtests of the Iowa Tests of Basic Skills were analyzed for sex bias. On the whole, little evidence for sex bias was found for the four subtests and three grade levels examined. (Author)

Stepwise regression was used in 1986 and 1987 to determine the best predictor variables for predicting the percentage of students in the 113 Atlanta Public Schools scoring at or above the national norm in reading and mathematics on the Iowa Tests of Basic Skills/Tests of Achievement and Proficiency. Twenty elementary school, 16 middle school, and…

The average grade equivalent reading comprehension scores of students in Black schools are compared to those of students in White schools under two forms of test administration. Concludes that use of grade level testing with the Iowa Tests of Basic Skills is biased in favor of low scoring subgroups. (Author)