To establish an evidence base for future computer-assisted language learning (CALL) design, CALL research needs to move away from CALL versus non-CALL comparisons, and focus on investigating the differential impact of individual coding elements, that is, specific features of a technology which might have an impact on learning (Pederson, 1987).…

Many states collect data on students and teachers, but linking teachers to students by course--the teacher-student data link (TSDL)--at the state level is critical to understanding the connection between student academic growth and teacher training, qualifications, and practice. This roadmap discusses the six key areas DQC recommends focusing on…

The purpose of this study was to identify and examine the top 100 most highly cited articles of all time as well as the 25 most highly cited articles of the last decade from within 5 school psychology journals: "Journal of School Psychology," "Psychology in the Schools," "School Psychology International," "School Psychology Quarterly," and "School…

Social validity refers to participants' perceptions regarding the goals, procedures, and effects of a practice. The collection and report of social validity data can serve an important role in understanding, and possibly remedying, obstacles affecting the successful adoption of empirically based practices by the field. Studies published between…

The "PISA 2009 Technical Report" describes the methodology underlying the PISA 2009 survey. It examines additional features related to the implementation of the project at a level of detail that allows researchers to understand and replicate its analyses. The reader will find a wealth of information on the test and sample design,…

Analyzes the properties of genetic sequences that cause the failure of classical algorithms used for data compression. A lossless algorithm, which compresses the information contained in DNA and RNA sequences by detecting regularities such as palindromes, is presented. This algorithm combines substitutional and statistical methods and appears to…

The National Center for Education Statistics conducts surveys which require the coding of the respondent's major field of study. This paper presents a new system for the coding of major field of study. It operates on-line i a Computer Assisted Telephone Interview (CATI) environment and allows conversational checks to verify coding directly from…

Reviews improvements to the Dictionary on Computer (DOC) research system redesigned by the University of California Berkeley Project on Linguistic Analysis. Emphasizes the redesigned program's greater accessibility since its introduction into a microcomputer environment. Underscores DOC's research value for studying the history of Chinese…

The Comparative Database System (CDS) provides a means for coding and using data on U.S. and international postsecondary educational activity and behavior. CDS permits education-data users to obtain accurate and reliable comparative data on postsecondary education questions. This document contains a discussion of the development of CDS, a detailed…

The Centre for Information Quality Management (CIQM) was set up by the Library Association and UK (United Kingdom) Online User Group to act as a clearinghouse to which database users may report problems relating to the quality of any aspect of a database being used. CIQM acts as an intermediary between the user and information provider in…