Frequent language exposure and use are among the most important conditions for successful language learning, whether in classrooms, during study abroad, or in other informal contexts. Research probing exposure and usage often relies on one-off self-report questionnaires in which participants estimate their typical level of language exposure over…

There is increasing consensus among psycho-educational scholars about argumentation as a means to improve student knowledge and understanding of subject matter. In this article, we argue that, notwithstanding a strong theoretical rationale, causal evidence is not abundant, definitions of the objects of study (argumentation, learning) are often not…

Models for measuring individual response precision have been proposed for binary and graded responses. However, more continuous formats are quite common in personality measurement and are usually analyzed with the linear factor analysis model. This study extends the general Gaussian person-fluctuation model to the continuous-response case and…

Growth curve modeling has become a mainstay in the study of development. In this article we review some of the flexibility provided by this technique for describing and testing hypotheses about: (1) intraindividual change across multiple occasions of measurement, and (2) interindividual differences in intraindividual change. Through empirical…

In this article, we report the observed differential uptake and use of computer programs and activities of seven boys and girls of high, medium and low attainment in a classroom in the UK where over 40 children aged 10 and 11 have a networked PC on their desk all day and every day. We observed the detail of what happened in the small space between…

At the beginning of a Java computer programming course, nine students in an undergraduate class and nine students in a graduate class completed a web-based programmed instruction tutoring system that taught a simple computer program. All students exited the tutor with an identical level of skill, at least as determined by the tutor's required…

New instructional delivery systems are needed to individualize instruction, relieve the teacher's burden as sole information provider, and meet the challenge of student diversity. Microcomputers, optical memory devices, videodiscs, and hypermedia programs are being combined to create integrated learning systems, multimedia work stations, and other…

A component analytic method for analyzing multivariate longitudinal data is presented that does not make strong assumptions about the structure of the data. Central to the method are the facts that components are derived as linear composites of the observed or manifest variables and that the components must provide an adequate representation of…

It has been demonstrated that the individual variation in the level and rate of learning for a cohort of students over time can be estimated by hierarchical linear models. Models of this type can also be estimated using widely available structural modeling software, which provides a flexible framework for model explorations, including the use of…

This report is based on the assessment of ICT (information and communication technology) literacy conducted in October 2005. It describes the development of a computer-based tool for assessing ICT literacy among school students and the application of that tool with a nationally representative sample of approximately 7,400 students from Years 6 and…