Over the last twenty years, education researchers have increasingly conducted randomised experiments with the goal of informing the decisions of educators and policymakers. Such experiments have generally employed broad, consequential, standardised outcome measures in the hope that this would allow decisionmakers to compare effectiveness of…

This experiment examines the causal effect an electronic classroom response system (ECRS) has on students. Previous studies using an ECRS in the classroom indicate improved performance; however, many have confounds typical of classroom studies. To complement these studies, we conducted a laboratory study to minimize these confounds and concentrate…

This study proposes a new method named the IIS-map-based method for analyzing interactions in face-to-face collaborative learning settings. This analysis method is conducted in three steps: firstly, drawing an initial IIS-map according to collaborative tasks; secondly, coding and segmenting information flows into information items of IIS; thirdly,…

Documenting treatment integrity is an important issue in research and practice in any discipline concerned with prevention and intervention. However, consensus concerning the dimensions of treatment integrity and how they should be measured has yet to emerge. Advances from three areas in which significant treatment integrity work has taken…

Arguing that summaries of 562 studies from 1985 through 1994 reveal that almost no attention is paid to the cognitive effects of Head Start programs, this report criticizes Head Start as being steadily and more generously funded without evidence that it helps children's scholastic achievements. The report criticizes available studies as practicing…

THIS REVIEW OF THE LITERATURE ENDEAVORS TO COVER ALL THE EXPERIMENTAL AND "SEMI-EXPERIMENTAL" RESEARCH ON THE EFFECTIVENESS OF EDUCATIONAL TELEVISION. TOPICS REPRESENTED ARE--(1) THE TEACHING ABILITY OF TELEVISION, (2) TELEVISION VERSUS CONVENTIONAL TEACHING, (3) TELEVISION VERSUS OTHER MEDIA, (4) PROGRAM PRODUCTION AND FORMAT, (5)…