Achieve3000®, a web-based differentiated reading program based on the Lexile® Framework and designed to improve student reading ability and comprehension of increasingly complex texts, was made available to approximately 100,000 secondary students across 98 HISD schools during the 2017-2018 academic year. The present evaluation, using a select…

Distinguishing between good and bad science is not easy. Evaluating whether or not a claim really is supported by good research is like buying a car. There is an optimal solution to the problem, which is to read and digest all of the relevant research, but most people do not have time to execute the optimal solution. What they need is a good…

This proposed research is part of an on-going line of research of developing questionnaire instruments for use at the elementary school level. Because field trials often use child self-report as outcome measures and sometimes determine implementation fidelity using such measures, evaluation of the validity of the use of such measures with…

While there is evidence for an association between the development of reading and arithmetic, the precise locus of this relationship remains to be determined. Findings from cognitive neuroscience research that point to shared neural correlates for phonological processing and arithmetic as well as recent behavioral evidence led to the present…

Following the ongoing increase in nonmarital fertility, policy makers have looked for ways to limit the disadvantages faced by children of unmarried mothers. Recent initiatives included marriage promotion and welfare-to-work programs. Yet policy might also consider the promotion of three generational households. We know little about whether…

An observational study of reading instruction was conducted in general education, resource, and self-contained classrooms, grades 1-4, in public schools. Participants included students who were deaf or hard of hearing and their reading teachers. Results indicated that time engaged in reading and/or academically responding varied significantly by…

To assess item dimensionality, the following two approaches are described and compared: hierarchical generalized linear model (HGLM) and multidimensional item response theory (MIRT) model. Two generating models are used to simulate dichotomous responses to a 17-item test: the unidimensional and compensatory two-dimensional (C2D) models. For C2D…