Validation of analytical methods is a fundamental subject for chemical analysts working in chemical industries. These methods are also relevant for pharmaceutical enterprises, biotechnology firms, analytical service laboratories, government departments, and regulatory agencies. Therefore, for undergraduate students enrolled in majors in the field…

This article illustrates five different methods for estimating Angoff cut scores using item response theory (IRT) models. These include maximum likelihood (ML), expected a priori (EAP), modal a priori (MAP), and weighted maximum likelihood (WML) estimators, as well as the most commonly used approach based on translating ratings through the test…

Researchers continue to be interested in efficient, accurate methods of estimating coefficients of covariates in mixture modeling. Including covariates related to the latent class analysis not only may improve the ability of the mixture model to clearly differentiate between subjects but also makes interpretation of latent group membership more…

Formal and informal systems of evaluation are commonly used by school divisions and districts to monitor teaching staff, measure teacher quality, inform staffing decisions, and plan professional development opportunities. Criticism from educators and supervisors of traditional and nontraditional evaluation systems has raised questions regarding…

As one of the most high-stakes practices in education, grading has been the subject of significant debate and research over the years. However, it is only recently that researchers have started to explore the teaching and learning values embedded in grades by looking at grading policies. This study examined grading polices in China by focusing on…

Computer-based assessments have considerable potential in assessment. This study explores the perceptions of 500 post-graduate students, noting gender differences where appropriate, in relation to the role of computer applications in formative assessment. Using questionnaires and interviews, the data reveal that the student perceptions of the role…

Assessment of teaching and learning internationally and within Nigeria formed the crux of the paper. The focus is the basic and secondary education levels. The main objective is to demonstrate that assessment of teaching and learning are core to education delivery. The concept of assessment was analyzed. Cases of assessments in Africa were cited…

Dynamic assessments in general, and game-based assessment (GBA) specifically, compel us to rethink prevailing language testing conceptualizations of context. Context has traditionally been portrayed with a cognitive orientation, which focuses on static abilities, ignores complex interactions, devalues the role of tasks in determining scores, and…

This dissertation examines the use of dialogic discussion to improve young adolescents' ability to critically evaluate web sites. An intervention unit comprised three iterations of an instructional cycle in which students independently annotated web sites about controversial issues and discussed the reliability of those sites in dialogic…

Disproportionate rates of suspensions and expulsions among racial/ethnic groups are a local, state, and national concern. Maryland has made significant progress in decreasing the use of exclusionary discipline, but there is substantial work left to do to move toward equity. Maryland has cut the use of exclusionary discipline practices by half in…

Across the South, many states and school districts provide basic training for evaluators. But this basic training does not assure that evaluators will be prepared to provide teachers with classroom observations that are rigorous, reliable and personally relevant. High-quality evaluator training leads to improved instructional practice, both…

The majority of states include value-added models (VAMs) or some other measure of student academic growth as a component of their teacher evaluation systems. However, there is considerable disagreement among researchers about whether states and school districts should use student growth measures to make high-stakes personnel decisions. Many…

Policies that require the use of information about student achievement to evaluate teacher performance are becoming increasingly common across the United States, but there is some question as to how or whether to use student test-based teacher evaluations when student assessments change. We bring empirical evidence to bear on this issue.…

Proponents of reframing argue that prophetic pragmatism entails redirecting contemporary education reforms. While this judgment may defend our professional standing, it overlooks the consequences of redirecting reform's appeals to global competition, which preclude public participation in defining the goals and measures of literacy education. This…

The goal of this dissertation was to document and analyze ways in which a game can be a valid and useful assessment of teachers' competency for the wise integration of technology in the classroom. Using concepts from ecological psychology and situated cognition, this study analyzed card and board games as measures of the situative and interactive…