It is an established matter that the total information in multivariate data is defined as the sum of eigenvalues of the variance-covariance matrix. In this article, we challenge this time-honored tradition and look at another definition of the total information in data from a dual scaling perspective. This proposal is a step toward unifying the…

The purpose of this study was to examine the potential effect of false assumptions regarding the motivation of examinees on item calibration and test construction. A simulation study was conducted using data generated by means of several models of examinee item response behaviors (the three-parameter logistic model alone and in combination with…

In this article the authors demonstrate two instances where the jackknife can be used to enhance hierarchical linear model (HLM) analyses. The jackknife was used to improve the HLM estimates of composite measures by jackknifing over items. The first study examined fixed-effects and variance component estimation. The jackknife appeared to reduce…

This article examines principals' espoused values and their values in action. It provides a reanalysis of previously collected data through a values lens. The original research study was an international quantitative and qualitative investigation of principals' leadership approaches that was based in 15 schools. This particular excerpt of the…

The purpose of this study was to examine the learning outcomes of students who had recently completed a two-year community-based Native Teacher Education Program (NTEP). The participants were 22 graduates of an NTEP who responded to open-ended items in a questionnaire on what they had learned throughout the program. Four women also participated in…

In this article we propose a model for collaboration in education. We begin by examining the roots of collaboration in consultation, collegiality, and cooperation. We then delineate the features of collaboration as phenomenon and process, offering the view that through talk, action, and reflection among individuals a community of learners emerges.…

As states and provinces develop large-scale assessment programs linked to their curricula, teachers are increasingly expected to interpret the assessment results and to explain them to parents. The challenge for teachers is especially great in Ontario, which began developing an assessment program in 1996 after almost three decades without…

The oil drop experiment is considered an important contribution to the understanding of modern physics and chemistry. The objective of this investigation is to study and contrast the views and understanding with respect to the experiment of physicists or philosophers of science with those of authors of physics or chemistry textbooks and…

Judging by their literacy proficiency scores, Nordic countries stand out from others. Their consistently high scores are intriguing and make their populations interesting benchmarks for other countries that participated in the International Adult Literacy Survey. This article addresses the question of whether there are any specific "Nordic" ways…

Collaborative peer learning environments have received increasing attention in classrooms due to the potential for improving learning and achievement. Yet previous research shows that not all students benefit from the collaborative experience. This paper explores the nature of helping behavior within peer-directed small groups that may be most…

Research in Mexican and British schools provides an empirical basis for arguing that, by the use of certain kinds of interactional strategies, teachers can enable children to become more able in managing individual and joint reasoning and learning activities in the classroom. The research described is based on a sociocultural conception and…

In this article two studies on the use of diagrams in computer-supported collaborative learning are compared. Focus is on the way argumentative diagrams can be used during collaborative learning tasks, more specifically how diagrams support argumentative interaction between students when they discuss ill-defined topics. The main goal is to…

In any classroom, pupils will be drawn together for many purposes and we can refer to such within classroom contexts as "groupings". The teacher often creates these, and the way that they are set up, and how they are used for particular learning purposes. If the relationships between grouping size, interaction type and learning tasks in groups are…

The aim of this article is to investigate the predictive capacity of major determinants of literacy proficiency that are associated with a variety of contexts including school, home, work, community and leisure. An identical structural model based on previous research is fitted to data for 18 countries. The results show that even after accounting…

The paper focuses on principles for the design of school activities involving the collective reading of multiple texts. We show that the collective reading of multiple texts has been practiced in rare occasions in Western history. Scrutiny of the reasons for the persistence and the decline of this practice in different societies suggests that it…