Validation of MET estimates and step measurement using the ActivPAL physical activity logger

The purpose of this study was to determine the validity of the metabolic equivalent (MET) equation and step rate function of the ActivPAL? physical activity logger in a group of females. Using a standard treadmill protocol, 62 females aged 15-25 years walked on a treadmill at speeds between 3.2 and 7.0 km · h(-1) while wearing an ActivPAL. Oxygen consumption was measured using expired gas analysis at each speed and METs for each speed were estimated based on each participant's own resting metabolic rate. A sub-set of 18 participants also wore an Actigraph. Results showed that the in-built equation in the ActivPAL significantly underestimated (P < 0.001) METs under treadmill conditions at higher intensities. The ActivPAL equation is based on step rate yet the relationship between counts and measured METs (r = 0.76; P < 0.001) is stronger than that between steps and measured METs (r = 0.59; P < 0.001). Both the ActivPAL and Actigraph step functions showed no significant difference (P > 0.05) to video recorded step rate except at the slowest walking speed where the Actigraph significantly underestimated steps (P < 0.05). The development of a new equation based on the counts-METs relationship that includes a variety of speeds and activities would be useful. The ActivPAL step function performs better than the Actigraph at the slowest walking speed under treadmill conditions.     

Quantifying physical activity in first-through fourth-grade physical education via pedometry

The aim of this study was to determine pedometry steps per minute (SPM) cutscores that accurately quantify physical activity (PA) time in first- through fourth-grade physical education. A total of 257 participants were grouped in two data pools, first- and second-grade (n = 126), and third- and fourth-grade (n = 131). Systematic observation was the PA criterion instrument and pedometry was the predictor instrument. Correlations between physical activity measures were strong (r = .82-.89, p < .01). Ten min of PA and 33.33% of the lesson time engaged in PA within a 30-min class can be quantified by 61-63 SPM for first- and second-grade, and 58-61 SPM for third- and fourth-grade. IN CONCOLUSION: (a) SPM values were a valid indicator of students achieving or not achieving PA criteria, and (b) pedometry is a valid and practical tool for physical activity surveillance within physical education.     

Continuous Assessment and Staff Development

This article examines the nature of choice that is inherent in delegated forms of school finance. While it is often assumed that choosing between the cost of undertaking one activity and the cost of another is a rational activity, the author puts forward the view that both the nature of cost and choice are subjective. As a result, management attention should be given not only to the mechanics of the process but also the subjective nature of ‘choice influencing’ factors if efficiency in resource use is to be achieved.     

Investigating the Psychometric Properties of the ACEI Global Guidelines Assessment (GGA) in Four Countries

The ACEI Global Guidelines Assessment (GGA) was developed to provide an international assessment tool that can be used by early childhood educators to develop, assess, and improve program quality worldwide. This pilot study was conducted in four countries to investigate the psychometric properties of the GGA within and across different countries. A total of 168 programs and 336 early care and education professionals participated in this study from communities in the People’s Republic of China, Guatemala, Taiwan, and the United States. The results show strong internal consistency for each subscale and the total GGA as well as moderate interrater consistency for the five subscales. A comparison of item ratings and the qualitative evidence suggests moderately acceptable congruence between the ratings and evidence to support the ratings. Patterns of program practices were identified within and across the participating sties and countries that reflected both unique and common practices. These results suggest that the GGA has potential as a useful and effective tool both for understanding early childhood program quality within and across countries and as a means of helping practitioners to establish and/or improve the quality of their services.     

Counteracting Summer Slide: Social Capital Resources Within Socioeconomically Disadvantaged Families

Research on summer learning has shown that children from a higher socioeconomic status (SES) continue to learn during the summer months of elementary school, but lower-SES students tend to stagnate or lose ground. However, not all low-SES students experience summer learning loss. Drawing on the Beginning School Study (BSS), a longitudinal study of a random sample of Baltimore public school students who began first grade in 1982, this article identifies a small sample of low-SES students who gained as much as their higher-SES peers in reading or math during at least three of the four summers of elementary school. Drawing on Coleman and Hoffer's (1987 Coleman , J. S. , & Hoffer , T. ( 1987 ). Public and private high schools: The impact of communities . New York : Basic Books . [Google Scholar]) theory of within-family social capital, we identify parental characteristics and practices that set these low-SES exceptional summer learners (ESLs) apart from their low-SES peers, who evidence the more typical pattern of summer slide.     

The context of their lives

Abstract

This paper explores the Ecology of Human Development Model (Bronfenbrenner, 1979) as applied to the lives of students enrolled in the Early Childhood Education program at James Madison University (Virginia). This model provided insights into who our students are, their experiences, beliefs and values and how they define themselves; secondly, the process of reflection provided an opportunity for students to examine their lives as part of a larger social context; and thirdly, by valuing the process, it is hoped that students would recognize the importance of coming to know the children they teach. It is imperative that students are well prepared for teaching an increasingly diverse population (NCATE Standard I.E.2). Our belief is that in order for prospective teachers to appreciate diversity in classrooms, they need first to examine the context of their own lives. © 2001 Elsevier Science Inc. All rights reserved.     

Teaching Toward Freedom: Early Childhood Education and the Challenges Ahead

This article examines issues surrounding the recruitment and employment of men in early childhood education, including special education, child care, and preschool through primary grade classrooms. Earlier research from the United States, Canada, and Australia concerning men in early education is reviewed. Issues discussed include the limitations of traditional gender roles, concerns of homosexuality, fear of sexual abuse accusations, salaries, and isolation. Initiating dialogue, identifying and remedying prejudices and practices that favor women, and activating support networks are among the activities suggested to increase the number of male teachers in early childhood classrooms.