Vitellogenin (Vtg) is a lipid transfer protein that carries yolk to the ovary. The vitellogenin receptor (VtgR) mediates the uptake of Vtg into the oocyte of oviparous animals; its structure includes eight ligand-binding repeats (LBR). The binding site of VtgR and Vtg and the location of the interaction within the molecules are at these LBR.…

Frederick M. Hess and Michael Q. McShane have gathered a diverse group of scholars to examine the shifting federal role in education across the presidential administrations of George W. Bush and Barack Obama. While the administrations were vastly different, one thing remained constant: an ongoing and significant expansion of the federal role in…

Antony John Kunnan is a language assessment specialist. His research interests are fairness of tests and testing practice, assessment literacy, research methods and statistics, ethics and standards, and language assessment policy. His most recent publications include a four-volume edited collection of 140 chapters titled "The Companion to…

This quasi-experimental study reports on the effectiveness of three assessment strategies for students' performance. The primary goal was to determine whether there are any improvements in students' conceptual learning when a frequent (weekly) quiz is used for grading purposes compared to using midterm and final examinations only. Another goal was…

Twenty-eight studies of grades, over a century, were reviewed using the argument-based approach to validity suggested by Kane as a theoretical framework. The review draws conclusions about the meaning of graded achievement, its relation to tested achievement, and changes in the construct of graded achievement over time. "Graded…

Test is procedures for measuring ability, knowledge or performance. Testing can be defined as a method of assessment and improvement of the students. Language testing in any point is an extremely multifarious task that ought to be based on method as well as exercise. The results of assessments are used for one or more purposes. So they have an…

This article details what resulted when I re-designed my undergraduate statistics course to allow failure as a learning strategy and focused on achievement rather than performance. A variety of within and between sample t-tests are utilized to determine the impact of unlimited test and quiz opportunities on student learning on both quizzes and…

Hon C. W. W Kannanagara is truly the father of Free Education in Sri Lanka who had a vision of providing free education to all at all levels from primary to tertiary in 1944, whereas it was only in 1990, after Jometien EFA conference, the world development organization advocated at least primary education must be free for all. After 70 years of…

The article challenges common practice in relation to resits of ignoring the main assessment results and making high-stakes decisions on the basis of resit results alone. Implications for institutions, students and educators are discussed. The proposal is that not all resits should be treated equally and that, in some circumstances, more robust…

Purpose: Older school-aged children and adolescents with persistent language and literacy impairments vary in their individual profiles of linguistic strengths and weaknesses. Given the multidimensional nature and complexity of language, designing an assessment protocol capable of uncovering linguistic variation is challenging. A process of…

The rigors of standardized testing make for numerous opportunities for examiner error, including simple computational mistakes in scoring. Although experts recommend that test scoring be double-checked, the extent to which independent double-checking would reduce scoring errors is not known. A double-checking procedure was established at a…

This study examined adolescents' interest in aerobic fitness testing and its relation to the test performances. Adolescents (N = 356) from three middle schools participated in the study. The participants took two aerobic fitness tests: the Progressive Aerobic Cardiovascular Endurance Run (PACER) and One-Mile Run (1MR) with a two-day interval, and…

In this study, we investigated differential item functioning (DIF) and its sources using a latent class (LC) modeling approach. Potential sources of LC DIF related to instruction and teacher-related variables were investigated using substantive and three statistical approaches: descriptive discriminant function, multinomial logistic regression,…

In 2 main experiments, the mediated priming effect was used to determine whether retrieval continues to be mediated after repeated testing. In each experiment, participants used the keyword method to learn French vocabulary, then completed a modified lexical decision task in which they first translated a French word, and then made a lexical…

Researchers have expressed concern about "implementation" fidelity in intervention research but have not extended that concern to "assessment" fidelity, or the extent to which pre-/posttests are administered and interpreted as intended. When studying reading interventions, data gathering heavily influences the identification of…