Tasks that ask students to label rational number points on a number line are common not only in curricula in the upper elementary school grades but also on state assessments. Such tasks target foundational rational number concepts: A fraction (or a decimal) is more than a shaded part of an area, a part of a pizza, or a representation using…

This study explores the following research question: How do secondary English learners (ELs) and Re-designated fluent English proficient students (RFEPs) use academic words in analytical writing in comparison to native English speakers (NESs)? It highlights previously overlooked differences in academic word use in the writing of students who are…

This study applies a diagnostic errors framework to identify and classify mistakes that were made in a psychoeducational assessment of a bilingual student who was misidentified as a person with autism. Findings of diagnostic errors were categorized under four domains--faulty knowledge, faulty data gathering, faulty data processing, and faulty…

This study investigated the specific ways secondary English learners (ELs) and redesignated fluent English-proficient learners (RFEPs) use academic vocabulary that assesses interpretive reading and analytical writing ability. The research examines how ELs and RFEPs, formerly ELs, differ in use and misuse of academic words. The study extends…

The assessment cycle of "evidence-centered design" (ECD) provides a framework for treating an educational video game or simulation as an assessment. One of the main steps in the assessment cycle of ECD is the identification of the key features of student performance. While this process is relatively simple for multiple choice tests, when…

Early efforts to apply knowledge of dialect differences to reading stressed the importance of the distinction between differences in pronunciation and mistakes in reading. This study develops a method of estimating the probability that a given oral reading that deviates from the text is a true reading error by observing the semantic impact of the…

The goal of this research programme was to evaluate the role of word lexicality in effecting phonological change in children's sound systems. Four children with functional speech sound disorders (SSDs) were enrolled in an across-subjects multiple baseline single-subject design; two were treated using high-frequency real words (RWs) and two were…

In this policy brief, the author explores the problems with attainment measures when it comes to evaluating performance at the school level, and explores the best uses of value-added measures. These value-added measures, the author writes, are useful for sorting out-of-school influences from school influences or from teacher performance, giving…

Examines common sources of error for scholars using mission registers to study California Indian history. Draws examples from mission register studies of the Chumash tribe to illustrate problems resulting from missing entries, name changes, linguistic errors, and cross-cultural confusion about naming taboos and kin relationships. Contains 34…

This study investigated the rates of successful mathematical performance and errors of information processing in third-grade children in California and continued an investigation of these factors in sixth-grade children. The objectives were to: (1) identify areas of mathematics in which the children had recognizable strengths and weaknesses, (2)…

This chapter provides an overview of statistical issues arising in work on educational assessment and school accountability, organized around some of the most consequential misunderstandings. The article proceeds via a series of nine vignettes describing misunderstandings of statistical uncertainty in educational assessment and school…