The relevance of hedonic price indices

We argue that for the case of heterogeneous commodities with infrequent tradings, such as paintings, it is relevant to base a price index on hedonic regressions using all sales and not resales only. To support this conclusion we construct a price index for paintings by Impressionists and their followers and compare the various estimators using bootstrapping techniques.     

Experience from the field: Programming in a joint-use partnership library

ABSTRACT

Librarians of the joint-use North Regional/Broward College (NR/BC) Library had sought opportunities to collaborate. Historically, challenges have arisen in programming for two distinct populations: seniors for the public library and the college library’s students. In recent years, the library successfully capitalized on organizational changes and nationwide attention to media literacy and social justice to create and deliver several well-received collaborations. This article describes the environment in which these initiatives developed and provides tips on collaborations in- and out-side joint-use libraries. This article also addresses the dearth of professional literature on programming advantages in joint-use libraries.     

International cooperation in educational research

International Review of Education -     

Critical factors for evaluating the public value of e-government in Sri Lanka

This paper aims to identify the critical factors for evaluating the public value of e-government in Sri Lanka from the perspective of the delivery of public services and the efficiency of public organizations. To fulfill these aims of the study, a conceptual framework is developed based on a comprehensive review of the related literature by considering the delivery of public services and the efficiency of public organizations. With the collected survey data from Sri Lanka, the conceptual framework is empirically tested and validated by performing a confirmatory factor analysis using structural equation modeling. The study shows that the delivery of quality information and services, user-orientation of information and services, efficiency and responsiveness of public organizations, and contributions of public organizations to the environmental sustainability are the critical factors for evaluating the public value of e-government in Sri Lanka. As the first study in examining the critical factors for evaluating the public value of e-government in Sri Lanka, the findings of the study would be of practical significance to the continuous development of e-government in Sri Lanka and other countries in the world.     

Does moderate-intensity continuous training result in greater total energy expenditure compared to high-intensity interval training?

Recently in the Journal of Sports Sciences, Schaun et al. published a study on the comparison of energy expenditure between high-intensity interval training and moderate continuous training performed in water. With this Letter to the Editor, we would like to comment on the methodological aspects that should be considered to analyze the results presented, as well as the conclusions.

Abbreviations: CONT, moderate-intensity continuous training; EPOC, excess post-exercise oxygen consumption; HIIT, high-intensity interval training; VO2max, maximal oxygen consumption.     

Networks of Encouragement: Who’s Encouraging Latina/o Students and White Students to Enroll in Honors and Advanced-Placement (AP) Courses?

Using affiliation network data collected at a large high school, this study examined differences between who encourages Latina/o and White students to enroll in advanced courses. Previous research has shown a positive association between emotional support and academic achievement, and thus, this study shifts the focus from who informs students to who encourages them. This study revealed that on average, Latina/o and White students have different networks of encouragement.     

Designing and implementing an undergraduate program in information systems security

This paper describes development and delivery of the curriculum for a four-year undergraduate program in applied Information Sciences which comprises all the aspects of information systems security. After the first generation of students graduated in 2008, the program was evaluated by using multiple methods, including an exploration of the challenges and successes the program underwent in the process. By reflecting on the established need for such a program and how it evolved historically, the authors set up a baseline for comparing this program with other related programs in the field as well as with known information systems security curriculum models. While this curriculum continues to be modified in response to requirements from the job market and input from industry experts, some challenges for the program remain, such as scarcity of qualified instructors to ensure seamless program delivery, having students with varied educational backgrounds in the same class, and underrepresentation of females. Program curriculum details and useful experiential conclusions are also provided.     

User relevance criteria choices and the information search process

Relevance judgments occur within an information search process, where time, context and situation can impact the judgments. The determination of relevance is dependent on a number of factors and variables which include the criteria used to determine relevance. The relevance judgment process and the criteria used to make those judgments are manifestations of the cognitive changes which occur during the information search process.Understanding why these relevance criteria choices are made, and how they vary over the information search process can provide important information about the dynamic relevance judgment process. This information can be used to guide the development of more adaptive information retrieval systems which respond to the cognitive changes of users during the information search process.The research data analyzed here was collected in two separate studies which examined a subject’s relevance judgment over an information search process. Statistical analysis was used to examine these results and determine if there were relationships between criteria selections, relevance judgments, and the subject’s progression through the information search process. Findings confirm and extend findings of previous studies, providing strong statistical evidence of an association between the information search process and the choices of relevance criteria by users, and identifying specific changes in the user preferences for specific criteria over the course of the information search process.     

Reflection on the teaching-learning process in the initial training of teachers. Characterization of the issues on which pre-service mathematics teachers reflect

Our aim was to highlight the issues of the reflections of pre-service mathematics teachers in their learning portfolio about the teaching-learning process taking place in a university teacher-training classroom. Category systems were designed which, together with the analysis system used, could provide a method helpful to teacher educators, teachers and to future research. The pre-service teachers showed difficulty in considering themselves as ‘authentic’ mathematics teachers. The study revealed that the preparation of a portfolio can help pre-service teachers learn more about themselves and provide educators insight into how to help pre-service mathematics teachers engage in the teaching-learning process.