Results in 487 reports were integrated by meta-analysis to study characteristics of problem solvers, conditions for harder and easier problems, effects of different instructional methods on problem-solving performance, and effects of classroom-related conditions on problem-solving performance. Problem solving related positively to measures of…

The annual report presents 1987 activities of the Transition Institute at the University of Illinois which was contracted to assist in evaluating and extending the federal initiative relating to educational and employment difficulties experienced by young people with disabilities. Briefly reported are activities related to the contracted tasks of…

This paper summarizes a quantitative synthesis of studies of the effectiveness of interactive distance education using videoconferencing and telecommunications for K-12 academic achievement. Effect sizes for 19 experimental and quasi-experimental studies including 929 student participants were analyzed across sample characteristics, study methods,…

This book presents state-of-the-science research on the components of successful literacy learning and how to target them in contemporary classrooms. The volume builds on and extends the work of Steven Stahl, whose pioneering contributions encompassed the key areas of phonemic awareness, phonics, vocabulary, fluency, comprehension, and assessment.…

Considers: (1) research by George Hillocks using meta-analysis to examine four modes of composition instruction; (2) role playing in classroom to improve student writing of persuasive letters or opinion essays; (3) process approach to English instruction, which allows for complex nature of individual learning styles; and (4) resource for promising…

The objective of this study was to evaluate quantitatively through meta analysis the effectiveness of child sexual-abuse prevention programs conducted over the past 10 years. Eighteen controlled studies evaluating such programs were coded for salient features and study outcomes and were then described using the common scale of effect size. An…

The Science Meta-Analysis Project (SMAP) resulted in the meta-analysis of a sizable proportion of the research in pre-college science education. Seven broad questions were examined during the study. These include the effects of different curriculum programs, effects of different instructional systems used in science teaching, effects of various…

Beginners in many disciplines learn that correlation never proves causation, but sometimes, even in public health, correlation, mistaken for causation, becomes the basis for policy and great expenditures of public and private money. "True experiments" with random assignment to experimental and control groups hold a special place in the…

For the twenty-ninth year, the Research and Theory Division of the Association for Educational Communications and Technology (AECT) is sponsoring the publication of these Proceedings. Papers published in this volume were presented at the National AECT Convention in Orlando, Florida. The Proceedings of AECT's Convention are published in two…