From activity to gestures and scientific language

Abstract: Gestures may provide the long sought‐for bridge between science laboratory experiences and scientific discourse about abstract entities. In this article, we present our results of analyzing students' gestures and scientific discourse by supporting three assertions about the relationship between laboratory experiences, gestures, and scientific discourse: (1) gestures arise from the experiences in the phenomenal world, most frequently express scientific content before students master discourse, and allow students to construct complex explanations by lowering the cognitive load; (2) gestures provide a medium on which the development of scientific discourse can piggyback; and (3) gestures provide the material that “glues” layers of perceptually accessible entities and abstract concepts. Our work has important implications for laboratory experiments which students should attempt to explain while still in the lab rather than afterwards and away from the materials. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 38: 103–136, 2001     

An investigation of perfectionism,mental health,achievement, and achievement motivation in adolescents

This study examined the relationship of perfectionism with measures of achievement and achievement motivation and mental health aspects of depression and self‐esteem in high school students. Participants were 123 tenth‐ through twelfth‐grade students. Results of multiple regression analyses indicated that students' personal standards were significant predictors of academic achievement. Students' personal standards also significantly predicted achievement motivation. Analyses of the relationship between perfectionism and depression and self‐esteem found that as students' personal standards increased, their levels of depression decreased and self‐esteem increased. Furthermore, when students experienced a discrepancy between their personal standards and actual performance, their depression levels increased and self‐esteem decreased. © 2000 John Wiley & Sons, Inc.     

The Changing Corporate Mind: Organizations,Vision, Missions,Purposes, and Indicators on the Move Toward Societal Payoffs

Where are the world's organizations headed? What do they see as their primary destination and contribution? What do they commit to deliver and to whom? How rigorous are they in defining their destinations? What label do they use to describe statements of their intended future? To find the answers to these and other questions, we examined 26 of the leading organizations internationally as well as 60 leading organizations in the United States. Based on this sample of world organizations, we found indications that many organizations see some aspect of societal good as basic to their future, while many others regard their own organization's well-being as what is most important. We find no clear favorite for what organizations label their statements of purpose: most use “mission” while some use “vision,” and some use “values” or “philosophy.” Few of the organizations in our sample state their intended destination in measurable performance terms. From these data, we discuss the implications in terms of an increasing emphasis in the literature on organizations having to deliver outputs that contribute to external clients and society. We also note that purpose statements must be accompanied by appropriate actions to achieve those intentions. In addition, we discuss how this move toward socially-responsive organizations is impacting the role of the performance technologist.