The ability to mentally re-experience past events improves significantly from childhood to young adulthood; however, the mechanisms underlying this ability remain poorly understood, partially because different tasks are used across the lifespan. This study was designed to address this gap by assessing the development of event-related potential…

A central issue in the design of curricula for all school levels is the development of the learners' high-order thinking skills and metacognitive skills. Among such required skills is the ability to solve problems. The literature dealing with the development of problem-solving skills is vast and primarily addresses the scientific disciplines, even…

The main purpose of this study was to examine the relationships between Chinese higher education students' epistemic beliefs and their judgmental standards of searching for literature online. Data were collected from 449 higher education students (152 college students and 297 graduate students) in Beijing via two self-reported questionnaires: one…

Investigates document ranking methods in thesaurus-based Boolean information retrieval systems and proposes a new thesaurus-based ranking algorithm called the Extended Relevance algorithm. Performance comparisons are made between the Extended Relevance algorithm and previous thesaurus-based ranking algorithms. (Contains 20 references.) (LRW)

The purpose of this study is to investigate the consistency of students' behavior regarding their pace of actions over sessions within an online course. Pace in a session is defined as the number of logged actions divided by session length (in minutes). Log files of 6,112 students were collected, and datasets were constructed for examining pace…

Demonstrates a means for estimating the number of retrieved items using well-established selective dissemination of information (SDI) profiles in the SCI, INSPEC, ISMEC, CAS, and PASCAL databases. A correlation between individual database size and number of retrieved documents in technical fields is also examined. (17 references) (LAE)

The ability to predict a student's performance could be useful in a great number of different ways associated with university-level learning. In this paper, a grammar guided genetic programming algorithm, G3P-MI, has been applied to predict if the student will fail or pass a certain course and identifies activities to promote learning in a…

Presents new methods for compressing bit matrices in large information retrieval systems which exploit possible correlations between rows of words and columns of documents. Three encoding methods are tested and compared--Shannon-Fano, arithmetic, and Huffman--and an appendix discusses binomial coefficients. (20 references) (LRW)

Evaluates the similarity of six statistical association measures in information retrieval by comparing the relationship and behavior they demonstrate in analyses of a test corpus. Highlights include comparisons of ranked term pairs and term clusters, multidimensional scaling, and the impact of term frequency on the association values by means of a…

Discussion of author cocitation analysis focuses on Pathfinder Networks (PFNET) where nodes represent authors and links represent weighted paths between nodes, the weights being cocitation counts. Highlights include remapping information science; comparison with principal components analysis; a correlation-based PFNET; and AuthorLink, a Web-based…

Compares the performance of the Target and Freestyle commercial search engines. Discusses traditional performance measures such as precision and recall, analytic models of performance, document rankings, query difficulty and correlates with other performance characteristics, and future research needs. (LRW)

SOME MACHINE-PRODUCED INDEXES ARE COMPARED TO ASSIST IN DECIDING ON THE FORMAT FOR A PROPOSED INDEX. THE OBJECTIVES OF AN INDEX AND THE SEARCH PROCEDURE ARE ANALYZED, AND AN EXPLANATION AND A RELATIONSHIP IS GIVEN FOR KEY-WORDS-IN-TITLE AND KEY-REFERENCES OF THE SAME ARTICLE. BASED ON THE COMPARISON OF THE INDEXES, A 53- YEAR CUMULATIVE INDEX WAS…

An analysis comparing semi-annual statistics of interlibrary loan transactions to online literature searches from July 1973 to December 1977 was conducted at the Carl Campbell Brigham Library, a social science research library serving professional staff members of the Educational Testing Service (ETS). A highly significant correlation was found…

The following rural sociological research needs were identified: (1) acceptance of general sociological theory and methodology for use in "Rural" research; (2) recognition of bench marks and probable base lines in rural sociological research; (3) collection of widely scattered reports for examination and perhaps respecification; (4) establishment…

The Second International Conference on Educational Data Mining (EDM2009) was held at the University of Cordoba, Spain, on July 1-3, 2009. EDM brings together researchers from computer science, education, psychology, psychometrics, and statistics to analyze large data sets to answer educational research questions. The increase in instrumented…