The purpose of the South African Mathematics Olympiad is to generate interest in mathematics and to identify the most talented mathematical minds. Our focus is on how the handling of missing data affects the selection of the 'best' contestants. Two approaches handling missing data, applying the Rasch model, are described. The issue of guessing is…

We evaluate the effectiveness in empirical migration research of the respondent-driven sampling (RDS) and the quota sampling with regard to four criteria: quality of the data; sociometric diversity of the sample; geographic coverage of the sample; and cost-effectiveness. We review two surveys of ex-USSR migrants, conducted simultaneously in the…

As participant recruitment and data collection over the Internet have become more common, numerous observers have expressed concern regarding the validity of research conducted in this fashion. One growing method of conducting research over the Internet involves recruiting participants and administering questionnaires over Facebook, the world's…

The use of reference groups made up of members of the population being researched has been encouraged within the qualitative research literature. This paper describes the use of reference groups made up of children and young people and promotes them as a space within which co-reflexive activities can help researchers reconsider their research…

The phenomenal growth of social media, web forums, and online reviews has spurred a growing interest in automated analysis of user-generated text. At the same time, a proliferation of voice recordings and efforts to archive culture heritage documents are fueling demand for effective automatic speech recognition (ASR) and optical character…

"Research Library Issues" ("RLI") focuses on current and emerging topics that are strategically important to research libraries. The articles explore issues, share information, pose critical questions, and provide examples. This issue includes the following articles: (1) Business Intelligence and Data Visualization with Tableau…

In February 2014, the Privacy Technical Assistance Center (PTAC) issued guidance titled "Protecting Student Privacy While Using Online Educational Services: Requirements and Best Practices." This Model Terms of Service document is intended to further assist schools and school districts in implementing that guidance. In a traditional…

Net Promoter System (NPS) is well known as an evaluation measure of the growth engine of big companies in the business area. The ultimate goal of my research is to build an action rules and meta-actions based recommender system for improving NPS scores of 34 companies (clients) dealing with similar businesses in the US and Canada. With the given…

Despite the emphasis on data-based decision making (DBDM) in educational policy in several countries, evidence regarding the intended effect of improved student achievement is still scarce. The purpose of this study is to examine the effects of a DBDM intervention on teacher efficacy. This study incorporates an experimental longitudinal research…

The purpose of this study was to determine if there was a difference in the writing assessment scores for each of the four traits--development, focus and organization, language, and conventions--as measured by the Tennessee Comprehensive Assessment Program (TCAP) of students who had a formal keyboarding course compared to those who did not. A…

Most public school teachers in the United States are enrolled in defined benefit (DB) pension plans. Using administrative micro data from four states, combined with national pension funding data, we show these plans have accumulated substantial unfunded liabilities -- effectively debt -- owing to previous plan operations. On average across 49…

The academic calendar contains national data on how the academic year is structured (beginning of the academic year, term times, holidays and examination periods). Differences between university and non-university study programmes are also highlighted. The information is available for 37 countries. [For the previous report "The Organisation…

The purpose of this qualitative transcendental phenomenological study was to understand the meanings ascribed by multiracial male and female NCAA Division I student athletes in the Southeast region of the United States to the lived experiences of stereotype threat. Stereotype threat is a phenomenon that is boundless and can influence any…

This article chronicles the development of a video-based ethnography project documenting daily life in a Kansas elementary and a secondary classroom. The project, which took nearly two years of planning, allows a direct link to two classrooms approximately 250 miles away to provide a virtual field experience for undergraduates and a wide array of…

In this article, I describe the processes involved in designing and carrying out a case study project. The case study focuses on a science teacher, Donald, who was undertaking an inquiry-based curriculum change to an advanced chemistry course in a specialized science, technology, engineering, and mathematics school. I describe the groundwork…