The authors examined 2 approaches for determining the required sample size of Welch's test for detecting equality of means when the greatest difference between any 2 group means is given. It is shown that the actual power obtained with the sample size of the suggested approach is consistently at least as great as the nominal power. However, the…

The unexpectedness of the birthday problem has long been used by teachers of statistics in discussing basic probability calculation. An activity is described that engages students in understanding probability and sampling using the popular Facebook social networking site. (Contains 2 figures and 1 table.)

Aggregating snippets from the semantic memories of many individuals may not yield a good map of an individual's semantic memory. The authors analyze the structure of semantic networks that they sampled from individuals through a new snowball sampling paradigm during approximately 6 weeks of 1-hr daily sessions. The semantic networks of individuals…

The purpose of this study was to reveal whether the low, medium, and high level self-regulated learning strategies of third year students at the Education Faculty of Cumhuriyet University can be predicted by the variables of gender, academic self-efficacy, and general academic average. The study uses the Relational Screening Model. The dependent…

This study aimed to investigate teachers' perspectives on the practical implementation of the standards agenda and its impact on their professional identities. Q-methodology was used alongside semi-structured interviews with UK primary school teachers. The study explored the views of 25 teachers in six schools, selected through purposive sampling…

In this fast changing world, pupils all over the world have developed severe social and psychological needs that affect their interactions with others and subsequently, the achievement of their life goals. Essentially, the social and psychological needs of school pupils have manifested in diverse mal-adjusted behaviours that hinder their academic…

Interest in pronunciation learning and teaching has increased significantly in the past few years. Studies and resources in the area have proliferated, but it is important to know whether they have influenced teachers of English as a foreign language (EFL) and English as a second language (ESL). The purpose of this study was to investigate the…

The study examined the relationship between teachers' utilization of school facilities and academic achievement of student nurses in Human Biology in schools of Nursing in Akwa Ibom State. Four (4) specific objectives, four (4) research questions and four (4) null hypotheses were formulated to guide the study. Ex-post facto survey design was…

This study, comparing the academic achievement levels of the students with different primary school entrance age, is in survey model. 60 students, at the second grade of a primary school centrally located in Tokat province in the year the study was conducted and were 60-66 and 73-84 months old when entered the primary school, were selected with…

The purpose of the current study was to examine primary and middle school principals' evaluations of their own instructional leadership behaviours, and thereby pay closer attention to the ideal instructional leadership behaviours suggested in the related literature and the realities of principals' instructional leadership behaviours. Although…

ADHD (attention deficit hyperactivity disorder) is a childhood disorder affecting children worldwide and has a major burden on the child, family and other caregivers. Aim: The aim of this study is to investigate and describe the experience of the adults that interact on a daily basis with school-aged children with Attention Deficit Hyperactivity…

This study investigated the Counselling strategies for curbing "Examination Malpractices" in Secondary Schools in Enugu State Nigeria. The researcher used three research questions. The Design used was a descriptive survey design. Sample consisted of 335 respondents comprising principals (N = 19), PTA secretaries (N = 19), teachers (N =…

The aim of this study was to investigate the attitudes of students, instructors, and educational principals to electronic administration of final-semester examinations at undergraduate and post- graduate levels in Payame Noor University in Khuzestan. The statistical population of this study consisted of all educational principals, instructors, of…

Purpose: The purpose of this study was to explore how Pinterest group pinboards are used to communicate health information on chronic obstructive pulmonary disease (COPD). Method A nonprobability census sampling method retrieved 399 pins from the 10 most followed COPD group pinboards. Pins were coded according to COPD information categories,…

In an earlier paper, we presented methods for estimating achievement gaps when test scores are coarsened into a small number of ordered categories, preventing fine-grained distinctions between individual scores. We demonstrated that gaps can nonetheless be estimated with minimal bias across a broad range of simulated and real coarsened data…