Clusterwise linear regression is a multivariate statistical procedure that attempts to cluster objects with the objective of minimizing the sum of the error sums of squares for the within-cluster regression models. In this article, we show that the minimization of this criterion makes no effort to distinguish the error explained by the…

To investigate the impact of self-correction method as an alternative to the traditional teacher-correction method, on the one side, and to evaluate the impact of personality traits of Extroversion/Introversion, on the other side, on the writing progress of the pre-intermediate learners three null-hypotheses were proposed. In spite of students…

This article describes the Knowledge Discovery and Data Mining (KDD) process and its application in the field of educational data mining (EDM) in the context of a digital library service called the Instructional Architect (IA.usu.edu). In particular, the study reported in this article investigated a certain type of data mining problem, clustering,…

This article reports findings from a study of the motivations of college students to choose or not choose a career as a K-12 teacher. Five hundred-seventeen college students majoring in education and non-education programs enrolled in undergraduate courses were surveyed as to their motivations for choosing/not choosing a career in K-12. If they…

I explore the role and value of African music in education, by drawing from a study of Grade 5 learners at a school in the Eastern Cape, which was designed to answer the question: Could Xhosa children in South Africa sing Xhosa indigenous songs significantly better than European folk songs? The experimental group received instruction in Xhosa…

The prevalence of depression increases markedly during adolescence, yet many youth are not receiving the support that they need. One factor that has been speculated as contributing to low rates of care is a lack of mental health literacy about depression and viable sources of support. This pilot study focused on mental health literacy as it…

This research examined teachers' online behaviors while using a digital library service--the Instructional Architect (IA)--through three consecutive studies. In the first two studies, a statistical model called latent class analysis (LCA) was applied to cluster different groups of IA teachers according to their diverse online behaviors. The third…

A non-experimental research study was performed in which the researcher investigated the relationship between principals' use of transformational leadership practices and students' reading and mathematics achievement. A sample of principals from 2,500 randomly selected elementary, middle, and high schools in New York State were recruited by…

Background: Large-scale randomised controlled trials (RCT) are relatively rare in education. The present study was an attempt to scale up previous small peer tutoring projects, while investing only modestly in continuing professional development for teachers. Purpose: A two-year RCT of peer tutoring in mathematics was undertaken in one local…

The purpose of this study was to examine the developmental trajectory of speed and accuracy of words in context and in isolation among skilled, average, and less skilled readers (N = 201). The authors assessed fluency of words read in isolation and in contextual measures in the fall, winter, and spring of 1st grade. They performed a multivariate…

Pictures are widely used to elicit expressive language skills, and pictures must be established as parallel before changes in ability can be demonstrated by assessment using pictures prompts. Why parallel prompts are required and what it is necessary to do to ensure that prompts are in fact parallel is not widely known. To date, evidence of…

Studies with adults of social dominance orientation (SDO), a preference for inequality among social groups, have found correlations with various prejudices and support for discriminatory practices. This study explores the construct among adolescents at an age when they are beginning to recognize the social groups in their environment, particularly…

The purpose of this study was to explore the learning strategies used by ethnically diverse learners and to investigate the relationships among the constructs of classroom goal structure, achievement goal orientation, motivation and self-regulated learning in an ethnically diverse population of fourth and fifth grade learners (n = 396). Goal…

A developmental model of children's understanding of nationality (Nationality Perspective-Taking Ability or NPTA) was proposed and evaluated in this study. The NPTA model expands extant definitions and provides a theoretical foundation for the developmental progression of national identity. Children (Mean age = 9.33 years) from Latin American and…

Problem statement: Contemporary global environmental problems have highlighted the importance of acting responsibly towards natural resources and the environment. The role of science education in shaping how people interact with the environment, therefore, has gained importance. The science education community has responded to this challenge by…