Evaluation of a Handheld Data Collection Interface for Science Learning

Despite a rise in the use of handheld computers in classrooms, meaningful learning with personal digital assistant (PDA) technology remains poorly studied. We report results from an evaluation of customized handheld data collection software, the BioKIDS Sequence, which was used during an 8-week biodiversity curriculum unit by 5th and 6th grade students in southeastern Michigan. We provide new information on design decisions and usability of our customized software; discuss learner use and preferences; and report rates of data accuracy. Most students were able to enter simple animal observations using an icon-driven, largely linear interface. The interface helped expand the types of data students were aware of, and allowed them to view and review their entries and flag them as uncertain, factors important in supporting accurate data collection. Other BioKIDS research indicates students were subsequently able to see simple patterns in their data to guide the formulation of future hypotheses, questions, or conclusions. The BioKIDS Sequence and PDA technology therefore represent a meaningful use of technology to support scientific reasoning.     

SATISFACTION AND ROLE STRAIN AMONG MIDDLE‐AGE AND OLDER REENTRY WOMEN STUDENTS

The major purposes of this study were: (1) to investigate a range of variables associated with satisfaction and strain experienced in the student role by mature (age 35 and over) reentry women students; and (2) to develop and test a model for predicting satisfaction and role strain in mature reentry women students. Questionnaire data were obtained from 141 women 35 years old and over who were enrolled as undergraduates at a major midwestern university. Significant correlates of satisfaction in the student role included: rated helpfulness of professors' attitudes, helpfulness of counseling, and psychological support from children and friends. Significant correlates of strain in the student role included: dissatisfaction with job, rated helpfulness of financial aid, and number of years since previous school enrollment; age of youngest child was correlated negatively with strain in the student role. Multiple regression results showed that the strongest predictor of satisfaction in the student role was helpful attitudes of professors. Implications of the findings for educators and counselors are discussed.     

Exploring Opportunities for Argumentation in Modelling Classrooms

On several levels it can be said that the act of modelling in science is inherently an argumentative act. That is, in virtually all aspects of modelling, from developing a question to judging between competing models that might answer that question, an individual is engaged in persuasive acts. Those acts may be private or public. They may be mental, written or oral, but they are about judging ideas and making sense of them; convincing oneself or others that the ideas and ways of looking at and explaining a phenomenon are useful. These acts are what scientists find exciting. They are what make science intellectually interesting and challenging. Inviting students into this practice is one way to help them learn both the content and process of science. This paper introduces a framework that is attentive to the research on how people learn while simultaneously pushing for curriculum and instruction that engages students in elements of the practice of science. We explore how this framework can be used to foster argumentation by describing the theoretical underpinnings of the framework and using classroom examples to illustrate the utility of the framework for promoting argumentation.     

Assessment of Doctoral Programs in Physical Education: Reports,Rankings, and Recommendations

Drawing upon five recent studies, this essay provides a summary analysis of the assessment of academic quality of doctoral programs in physical education. Specifically, the analysis focuses on 12 rankings of doctoral programs and examines them in terms of three methodological issues: subjective versus objective measures, measures of quantity versus measures of quality, and single versus multiple measures. In conclusion, two composite rankings of the academic quality of doctoral programs are given, and recommendations are made for future quality assessment studies in physical education.     

Development and Safety of an Exercise Testing Protocol for Patients with an Implanted Cardioverter Defibrillator for Primary or Secondary Indication

Purpose

Performing exercise tests in patients with an implantable cardioverter defibrillator (ICD) presents specific challenges because of susceptibility to ventricular arrhythmias during maximal levels of exertion. The purpose of this paper is to outline the exercise testing protocol from the Anti-Arrhythmic Effects of Exercise after an ICD trial and to report baseline test results and safety outcomes using the protocol.

Methods and Results

Maximal cardiopulmonary exercise testing was performed to assess levels of physical fitness as part of a randomized trial of walking exercise in patients with ICDs. Subjects were randomized after baseline testing to aerobic exercise plus usual care or usual care alone. A modified Balke treadmill exercise test was used and specific ICD programming procedures were implemented to avoid unnecessary shocks, which included programming off ventricular tachycardia (VT) therapies during testing. To date, 161 baseline tests have been performed. One ventricular fibrillation (VF) cardiac arrest occurred following completion of an exercise test and three tests were stopped by the investigators due to nonsustained ventricular tachycardia. Eleven subjects were not able to achieve maximum exercise, defined as reaching an anaerobic threshold (AT) at baseline testing. There have been no deaths as a result of exercise testing.

Conclusions

Symptom-limited maximal exercise testing can be performed safely and effectively in patients with ICDs for both primary and secondary prevention indications. Specific strategies for ICD programming and preparation for treating ventricular arrhythmias needs to be in place before exercise testing is performed.Key Words: implanted cardioverter defibrillator, exercise testing, treadmill protocol     

My soul is a witness: Affirming pedagogies of the spirit

Utilizing a cultural ideology and an explicit discourse of spirituality, this paper seeks to answer three questions. First, what does spirituality mean for the ways in which African-American women educate and research? Second, how does the enactment and embodiment of a spiritually centered paradigm impact the learning of both teacher and student in the context of the classroom? Finally, what might such work imply in terms of theory and praxis, particularly in teacher education? Arising from a case study of an exemplar African-American female professor at a large Midwestern university, three narrative tales are shared which explicate the power and influence of a spiritual pedagogy in the lives of three African-American scholar/teachers and that challenge taken-for-granted assumptions of singularity in epistemology and representation in teaching and research.