This article describes a 5-step model of intervention research. From lessons learned in our work, we develop an outline of core activities in designing and developing social programs. These include (a) develop problem and program theories; (b) design program materials and measures; (c) confirm and refine program components in efficacy tests; (d)…

arrow]US associations also survived The memories of the unconditioned stimulus (US) and its absence (No US), symbolized as S[superscript R] and S[superscript N], respectively, may be retrieved on US or No US trials giving rise to four types of associations, S[superscript R][right arrow]US, S[superscript R][right arrow]No US, S[superscript N][right…

The purpose of this article is to share a learning-cycle sequence of lessons designed to convey the particulate nature of matter through use of physical models and analogical thinking. This activity was adapted from Conceptual Chemistry, a long-running professional development program for teachers of grades 4-9. Conceptual Chemistry's approach is…

This article gives a general overview of an alternative instructional sequence that can be used to teach integer concepts and operations. The sequence follows three heuristics from Realistic Mathematics Education (RME) that encourage curricula to be reinforced with real-world applications (financial net worth): move students gradually, yet…

This article addresses the development of a conceptual model of fieldwork practice and the creation of an associated set of skills for the geosciences. The set of eight generic and seventeen specific skills is applied in two international field courses to demonstrate the utility of such a skills-centered model across a broad range of venues,…

A sequential testing model is proposed which employs discriminant functions to classify examinees into groups which could correspond to instructional treatments. A termination rule based on the computed posterior probability of group membership is suggested. (Author)

Comments on the preceding article which examined elaboration theory and offered suggestions for updating it to reflect new knowledge. Highlights include the simplifying conditions method; internal versus external knowledge structures; connectionism and authentic tasks; content structure as organizing structure; ill-structured domains; and…

Part two of a proposal for a unified, sequential approach to environmental education. Presents a working model for the environmental education curriculum and expert reactions to the model. (LZ)

Although there is widespread agreement on the importance of ethics instruction in business education, there is not agreement on the best approach or timing of instruction. This article uses J. O. Prochaska and DiClemente's transtheoretical model of change as the basis for a developmental model of student readiness for learning about ethics. By…

Discusses elaboration theory, an instructional design model for sequencing and organizing courses that is based on cognitive research, and offers suggestions for updating the model to reflect new knowledge. Topics addressed include knowledge representation, including content structure; sequencing issues, including microworld design and cognitive…

The purpose of this manuscript is to conceptualize a unified Response to Intervention (RTI) model that may be applied to Head Starts or preschools with typical children and those identified as "at risk," or "children with disabilities." RTI basically provides a specific and discrete cumulative intervention history of services which also may be…

A method of organizing studies on sequencing problems in mathematics according to a theoretical model based on characteristics of empirical science is explained. The conceptual framework underlying eight studies that follow this article in JRME (SE 508 022 through SE 508 029) is discussed and a brief overview of each study is given. (DT)

In contrast to exemplar and decision-bound categorization models, the memory and contrast models described here do not assume that long-term representations of stimulus magnitudes are available. Instead, stimuli are assumed to be categorized using only their differences from a few recent stimuli. To test this alternative, the authors examined…