The authors describe Monster, PI, which is an app-based, gamified assessment that measures language skills (knowledge of morphology, vocabulary, and syntax) of students in grades 5-8 and provides teachers with interpretable score reports to drive instruction that improves vocabulary, reading, and writing ability. Specifically, the authors describe…

This study examined the effectiveness of the intensive implementation of a multicomponent reading intervention (Voyager Passport) with 306 fourth grade students with severe reading difficulties. Students with reading comprehension achievement below the 15%ile in the fall of fourth grade were randomly assigned to the intensive intervention or to…

The authors evaluated measurement-level, factor-level, item-level, and scale-level revisions to the "Gifted Rating Scales-School Form" (GRS-S). Measurement-level considerations tested the extent to which treating the Likert-type scale rating as categorical or continuous produced different fit across unidimensional, correlated trait, and…

Purpose: The current study takes a practical and theoretically grounded look at assessment of morphological knowledge and its potential to deepen understanding of how morphological knowledge supports reading comprehension for students with limited reading vocabulary. Specifically, we explore how different morphological skills support reading…

This investigation examined the structural relations among latent variables of language, decoding, and reading comprehension, invariance of the patterns of predictions, and unique and common variance over two years in grade cohorts 5 to 6, 7 to 8, and 9 to 10. Participants were 321 students in grade 5 in six elementary schools, 299 students in…

Two widely studied language skills in relation to reading comprehension are listening comprehension skill and academic language proficiency. Although their constituent skills and theoretical accounts of how they are related to reading comprehension share a large overlap, they have been studied in separate lines of work. In this study, we…

This study provides significant advances in the understanding and utility of writing assessment for progress monitoring writing instruction. We explored the validity of a new writing tool that asks students in Grades 3 through 8 to read and respond to informational passages. The written response is then scored for writing fluency. Results…

This paper introduces a new observation system that is designed to investigate students' and teachers' talk during literacy instruction, "Creating Opportunities to Learn from Text" (COLT). Using video-recorded observations of 2nd-3rd grade literacy instruction (N = 51 classrooms, 337 students, 151 observations), we found that nine types…

Despite scientific advances that have informed our understanding of reading acquisition and development, a profound gap exists between empirical findings and the implementation of evidence-based practices in the assessment and instruction of reading in school settings. The debate regarding the practical implications of the science of reading (SOR)…

The science of reading should be informed by an evolving evidence base built on the scientific method. Decades of basic research and randomized controlled trials of interventions and instructional routines have formed a substantial evidence base to guide best practices in reading instruction, reading intervention, and the early identification of…

This study examined the effectiveness of the intensive implementation of a multicomponent reading intervention ("Voyager Passport") with 306 fourth-grade students with severe reading difficulties. Students with reading comprehension achievement below the 15th percentile in the fall of fourth grade were randomly assigned to the intensive…

Models of word reading that simultaneously take into account item-level and person-level fixed and random effects are broadly known as explanatory item response models (EIRM). Although many variants of the EIRM are available, the field has generally focused on the doubly explanatory model for modeling individual differences on item responses.…

Academic language has been identified as an important focus for instructing students about the quality of written composition they need to be successful in college and career. However, the role of academic language in written composition achievement is not well understood. This study explores the role of academic language skills in students'…

The assessment of screening accuracy and setting of cut points for a universal screener have traditionally been evaluated using logistic regression analysis. This analytic technique has been frequently used to evaluate the trade-offs in correct classification with misidentification of individuals who are at risk of performing poorly on a later…

In this large-scale study of students from Title 1 schools (N = 14,773), we used multiple-group latent change score (LCS) modeling to investigate the developmental relations between vocabulary knowledge and reading comprehension in students with a school-identified learning disability (LD; n = 627) and typically developing students (n = 14,146).…