This study presents a worked example of a stepped process to reliably estimate the habitual physical activity and sedentary time of a sample of young children. A total of 299 children (2.9 ± 0.6 years) were recruited. Outcome variables were daily minutes of total physical activity, sedentary time, moderate to vigorous physical activity and proportional values of each variable. In total, 282 (94%) provided 3 h of accelerometer data on ≥1 day and were included in a 6-step process: Step-1: determine minimum wear-time; Step-2: process 7-day-data; Step-3: determine the inclusion of a weekend day; Step-4: examine day-to-day variability; Step-5: calculate single day intraclass correlation (ICC) (2,1); Step-6: calculate number of days required to reach reliability. Following the process the results were, Step-1: 6 h was estimated as minimum wear-time of a standard day. Step-2: 98 (32%) children had ≥6 h wear on 7 days. Step-3: no differences were found between weekdays and weekend days (P ≥ 0.05). Step-4: no differences were found between day-to-day variability (P ≥ 0.05). Step-5: single day ICC’s (2,1) ranged from 0.48 (total physical activity and sedentary time) to 0.53 (proportion of moderate to vigorous physical activity). Step-6: to reach reliability (ICC = 0.7), 3 days were required for all outcomes. In conclusion following a 7 day wear protocol, ≥6 h on any 3 days was found to have acceptable reliability. The stepped-process offers researchers a method to derive sample-specific wear-time criterion. 相似文献
Lapides, J. “Teaching styles in adult education. An exploratory essay,” Revue ATEE Journal 3 (1980) 191‐205.
Two approaches to teaching styles are explored. The first is a static approach borrowed from management research and organizational development practice. In this approach teaching styles were derived from Maslow's hierarchy of needs. They were seen as the interpersonal styles of behavior with others, which grow out of people's needs. Seven teaching styles were identified and described. The second approach, in contrast with the life‐style approach, is based on the assumption that teachers can be trained in alternative styles. Mosston believes that everyone can change through learning and that teaching style is a learned characteristic. Seven styles from command to discovery have been identified and described. Suggestions for teacher training are included. 相似文献
This paper focuses on seven major managerial practices and three negative conditions that must be managed to enhance employee growth and development. These managerial practices and conditions have significant potential for human resource development practitioners and performance improvement technologists by providing new perspectives to improve employee performance through employee growth and development activities. Surveys measuring employee perceptions of manager behaviors were administered to 503 MBA and PhD students from the United States, resulting in 463 useable responses. The hypotheses were tested using linear regression and structural equation modeling. Based on the analysis, the researchers found that involving employees in decision making, motivating employees, treating employees as unique individuals, and making certain that managers are effective have the highest influence on employee growth and development. 相似文献
Increasingly, customer satisfaction and business success depends as much on speed and timing as it does on the cost and quality of the goods we produce or the sendees we render. As such, doing things faster is becoming just as important as doing them better and cheaper. Increased efficiency, however, will not be attained simply by imploring employees to work harder or by increasing employee workloads. Increased efficiency can only be accomplished through the systematic analysis and reengineering of our work processes, including the elimination or minimization of all associated non-value adding process steps. DO•CA•TIM, a seven-step methodology for systematically identifying and eliminating or minimizing non-value adding process steps, is presented. The methodology is appropriate for analyzing and improving the execution of any human task; it is equally applicable to the rendering of services and the production of products. 相似文献
Many studies examine the development of infants born at risk for medical and developmental problems during the early years of life, but far fewer follow these children into their school years. This project compared high-risk vs. low-risk children in their performance on the WPPSI at pre- and postkindergarten levels. In general, both groups of children demonstrated increases in performance; however, their patterns of performance were different. The high-risk children showed increases predominantly in the Performance areas of the test, whereas the low-risk children demonstrated increases predominantly in the Verbal areas. 相似文献