In this technical report, we provide the results of a series of studies on the technical adequacy of the early reading measures available on the easyCBM[R] assessment system. The results from the two-level hierarchical linear growth model analyses suggest that the reliability of the slope estimates for the easyCBM[R] reading measures are strong,…

In this technical report, we provide reliability and validity evidence for the easyCBM[R] Reading measures for grade 2 (word and passage reading fluency and multiple choice reading comprehension). Evidence for reliability includes internal consistency and item invariance. Evidence for validity includes concurrent, predictive, and construct…

In this study 6,942 items from two standardized achievement test batteries--the Stanford (Early School Achievement Battery, Achievement Battery, and Test of Academic Skills) and the Comprehensive Test of Basic Skills--were analyzed. Focus was on determining: (1) the extent to which these test batteries included general cognitive operations (GCOs)…

A 2.5-year longitudinal study of the reading scales of the Stanford Achievement Test confirmed the redundancy in its subtests. Strong and stable test-retest reliability coefficients were evident and supported the use of the Stanford total reading scale for longitudinal evaluations. (Author)

This study provides data on norming and performance standards on the Stanford Achievement Test, 9th Edition, for both hearing and deaf students. It graphically analyzes these data in the context of interpreting individual test scores, examining achievement of groups of students, and specifically, interpreting test scores of high achieving deaf and…

The Cognitive Profiling System (CoPS 1) is a psychometric assessment/screening system presented in the form of computer games to children in their early school years in order to predict the probability of later learning difficulties of both a general and specific nature (Singleton, Horne, & Thomas, 1999). Although some evidence is available as…